perm filename CSREPT.SAI[USE,CSR]38 blob sn#645889 filedate 1982-03-10 generic text, type C, neo UTF8
COMMENT ⊗   VALID 00021 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00004 00002	Declarations
C00013 00003	I/O preparation: ttin,lookupfail,enterfail,renamefail,inuse
C00017 00004	Procedures for input: inscan, resp, ynresp, cresp
C00021 00005	Forms: textinfail, invout
C00029 00006	Procedures onhandin, onhandout, new_report for onhand file input/output
C00034 00007	Procedure rdaddr, buildtree, and addfilin for address file input
C00041 00008	Procedures wraddr, untree, addfilout for address file output
C00045 00009	binary search tree maintenance routines: search,insert,delete
C00050 00010	Procedures to access the address file: unpack,display,find
C00054 00011	Sub-procedures for update actions: zipcheck,gethash
C00058 00012	procedures for update actions: look,ins,mfy,del,update,shorten
C00064 00013	The procedure which records orders received
C00073 00014	The `receive' procedure, which handles virtual money
C00079 00015	Procedures for making labels: lab,emitlab,endlab
C00083 00016	The MAIL procedure and its subprocedures abst,invo,inv,status,scanorders
C00103 00017	The `send' procedure, for isolated orders
C00122 00018	The `adjust' procedure, to adjust the inventory
C00127 00019	The president (chief executive)
C00136 00020	The program starts here (sets string constants, including HELPs)
C00147 00021	Set breaks, open channels, call main procedure, end gracefully
C00151 ENDMK
C⊗;
comment Declarations;
begin "report"
      comment This is the CS report system coded by D. Knuth, October 1976,
    	modified and extended since then by Jim Davidson
	Cheshire labels fiddled by Les Earnest, March 1980;

EXTERNAL PROCEDURE BAIL;

require 200 system_pdl;
require 30000 string_space;

require "⊂⊃" delimiters;
define # = ⊂;comment⊃l~∃IK→S]JA
aYL@t@ PNDjLNbHR"`,hS∪↔≠Ns∃β∂⊗c→I↓jA!≥)→
E⊂1≥EII	l4+&+∪';*β'∂IβiA≥(El4T#↔≠'v)β'πg!↓uα9E]TX4+∪.3';∃εK≠→↓hA≥E!	l4+&+≠';*βπO'V)↓uβ	eA@
↓¬β7∂C'7Whβ;W7⊗+Iβ?2βπβ∪⊗+OO↔~β'9β&C∃β7∞K3';8β3'O#X4+∪.3';∃εc?∨π≡Kk∃↓jAED
↓
β7/≠Qβ*β↔GW∞aβS=β	↓-β6c??IFc≥βπ≡Kk∃%Xh+∪↔6K;∃β↔≠'k∃βiAE3↓@E↓~β7πcNkW5βw+7↔∩β?→β⊗+C?K'→β'9∧z:"εt!:∩NZβ≠'3+X4+∪.3';∃ε≠G'k*↓uA↓A@Eα→β7πFK7W5εsW7/⊃β?→ε≠WOS}k↔KMε3?Iβ
βO';>c∃β7∞K3';;X4(4T#↔≠'v)β∂[~C%%↓jA#'2β%qEαβS#↔r↓↓A	↑Iβ↔3≡)↓!

⊃5EAJ[%$Eα→β↔;≤{∪↔LhP$$'≡kπ31εK;S↔>+Iβπ~β¬βONs∨3∃ε≠#πK∞≠S↔Iαi5β∪N;'Qβ␈⊃β3↔'#↔IlhS∪↔≠Ns∃βW>+S→#613∂F93π&!%↓u↓β[π1¬yβ∂?&)!≥A;→AAAβ↓AAAαY≥QAβ↓AAAαS∂#πrcπ∪⊃Iλ4(%~βWO↔"βS=β≡['Aβ&yβS#*β↔;⊃ε{→βSF)α2>:β≠'3*β←#↔rβ;↔∂/≠OπKKX4(4V#↔≠'v)βS"↓uA		↓
β↔∪↔π/&3∃ε3?Iβ'#'9lhS∪↔≠Ns∃β633→↓jAHEα→βK.-β?rβ≠?Kn3↔↔⊃αC↔;⊃πβπ∨∃Jβ?IβfK;↔≠.+⊃↓#.s⊃β3Ns∃%lhS∪↔≠Ns∃βf1↓uβ_E↓
ε∪K↔πZβ?9βfK;↔≠.+⊃l4V#↔≠'v)βπ↔→↓uβ E↓
ε∪K↔πZβ?9βcX4+∪.3';∃ε∪πOQβiAT
↓
β⊗+π-β}q↓)lhS∪↔≠Ns∃β61↓uβ0E↓
ε∪K↔πZβ?9β6{K7≠.+⊃l4V#↔≠'v)βC∂⊃↓uβ8E↓
ε∪K↔πZβ?9↓KX4+∪.3';∃ε∪OA↓jA`Eα→βK.-β?rβOCπ≡)↓#?∩βSπ	KX4+∪.3';∃ε∪∂!↓jAdEα→βK.-β?rβ;?9n∪3π;[X4+∪.3';∃ε∪3≠∪}c3πIβiAE↓	↓
β↔∪↔π-ε{9β32β?I↓∩!	l4V#↔≠'v)β[∂⊃↓uβ	DE↓~β[πKN3∃ε∪K↔πZβSπf)1βO/!β∪gv7'∂∞c3elhP4+}{3↔πrβ↔?→α→β↔;"β?→β6K3∃βNs∪'∂∂#?IlhS??f+π9βf{∨WO.!1βK/β↔πSNs≥↓
εK∃β>)βWONs≥β'wβWQβ7∪?5β
β≠'3*aβπ≠&+Iβ¬π≠gOS.iβ∂K∂≠!⎇↓Xh+';&+∨↔Iε∪K∂#∂⊃↓
β↔∪↔π-ε≠#πK∞≠S↔IXh+';&+∨↔Iε33π≥α→β';π+Q7?/#CWQε33π≥Xh+';&+∨↔Iεc';↔≡sQ1β≡CπK∂w!↓
β&C∃β;.k↔K~β?→βfK;↔Mε;⊃β≡CπKMεs?QβN+QβO∂3↔⊃β}qβS#*α2>≥ε3'3∃Xh+';&+∨↔IεK∂#πr↓
β∂F;;↔bβ≠?IεK;CW#X4+∂}k7↔;"βS#↔⊗)βWO.!βS=ε∪∃βS>yβ∂#∞s;↔3~β#↔K*aβ'∂F9↓→εK'∂#∞q1β≠␈⊃β∂#∂∪π∂S/⊃β';π+P4(N;⊃β∞#∪K↔∨→β≠'f)β';π+Q1β⊗+OC↔∨#'[↔gI9↓α&C∃β∂F;∨∃ε{→↓E∩yEE=;9β?6KπS↔"βS#'≠X4+'w#↔∨↔∩β?∂#∞q1β?}≠#π9bβ???≡Cπ9↓~β∂#πvs↔3Mε3?Iβ␈+SCW#X4+∂}k7↔;"β?∂#∞qβ'Mπ+O↔⊃ε3?IβNs[?'≡+M1α|r"ε:"r∩N-ε3'3∃bα>J∩-∩Mβ≠Nc∃84PK??∂F9β∨/#MβSF)ββ∂}kCK↔∨≠↔⊃≥π3↔KON{9β?2βS#∃εK;[?N≠↔M8hP'??}≠#π9εKMβW≡+⊃βSzβ←K'&)β?W"βS#∃εs↔]β6+KO'}qβ?→π##∃β∞#∪K↔∨→β≠'f)l4+NsS↔∨/⊃β3∂F9↓
ε≠#π;v+1β≠␈⊃β7πNc';≥εcπ↔bβ?WSπ+Ql4VK;S↔>+Iβ≡Cπ9↓~βWO↔"β≠?Iπ##∃αdz≥β≠Nc∃β?2β∂?7n;∪MXh(4+NsS↔∨/⊃β
3"c%3)fY353αcE3Qbβ∂#Iα→β7'≡≠↔33∞s↔?W~βS↔7ε{KπKJβ';S.;↔KMbβC?'w#↔KMbβ↔S
sX4+O'∪';≥π→3OQg≠SQ3∨#I↓
εk'O∂.c3π;.{WMβ&+7C?⊗Keβ∨#K';?→l4(hSOSKNs≥βSOβ↔'9α→β';π+QβK/#WK;.!βeπ#S'9bβ↔;∪~β←'SBβ∂IlhS';S.;↔Iβ≡≠π3∃α→βO∂∞c∃β≠∞≠S?Iπ∪↔SW⊗s↔⊃β↔Iβ';≡≠π9lhS';S.;↔Iβva↓
βw+7↔∩β?→βfK;↔Mπ∪↔SW⊗s↔⊃β↔IβW;ε∂-lhSOSKNs≥βπ↔∪πeβfs⊗mAS2u↓
εK;∪'6K∪Wπbβ3';-→β?→ε9βπ&#K↔O≠X4(4VK;S↔>+Iβπ↔∪πeβo#πC⊗[↓iFUα→βWO.!βS=ε≠π31π##∃β/β∪πS*α6Rε∧)αVVzaβS=π∪↔O↔"βC?'w#↔KMXh($4VK;S↔>+Iβπ↔∪πeβfc';-g∪3';Zc/↔ef∪π3πv≠⊗mAVO'k-i↓
β⊗K;πKJβO↔π⊗≠!βS⊗+∃βO'∪W∂S/∪∃l4PK∂?7n+;Qβ&C∃βπ&#K↔O~β≠'3*β'Mβ␈∪∨π;MS↔⊃β∂→β¬β⊗K;πKJβSK↔*p4('↑+foBjβ'Mβ&C∃β#∂≠#∂?&)1β'rβ';∂∪eβ≠␈∪51β}1βS#*βπ∪∪⊗+OO↔*β←#?≡(4('≡+K'πbβ;W7⊗+Iβ'~βA9β⊗3π;≡*gBuεKMβSF)β;Wn∪↔Iβ}1βC↔vs'↔MεC∃β?>+M84PJW;W≡+⊃βC␈≠'S'}sMβ?2βS#∃π#π3*βπK∃ε#?WgI73'v[↔⊃βNsS=β∞qαεZJ1β3O≠P4(O;#?O*β#↔π"β'Mβ∂!βC?≡KS'?r↓A9α∨+∂!β.sSK'/→β#π6)β/↔KiAl4W≠SK'v9βπK⊗eβ;nc';∃fc';↔≥YAkπ≡Kk⊗uα→β;7fK;⊗o¬iβ'Mεc';∃β	β?→ε9βπ&#K↔O~`4('.s∪';:β←'SBβ∂K32qβ3'v+NoBjβ∂?;&';Mπ##∃β⊗+OQβ}1βS#*βπ∪∪⊗+OMβNs≠?KnS'?r`4('∂→β≠?fc?←MRα3↔Qπ→w3'v+NoBjaβS#.p4($O~mEβ&y↓FuεKMβSF)β7πNc';≥ε≠πS↔>{Ke↓B∩
	1∀1	1

⊃1
9∩a
5	bβ?I
∩⊃$4(HKNmIπ#=↓Zjβ'Mβ&C∃βkO↓β∂?&)β?Iε≠?W;'∪e1β␈⊃α&∩l
%1α
*R>5bβ↔S
ph($'≥Y]βSz↓EbuεKMβSF)βπ∂&K['SJβ∂?∪*β≠?IεcπOQβ	Iβ7∞K3';?_4($HI!A1
a999cI2¬2∩a999ε3?I↓αa↓E1αq991βI1↓Eαa↓EEb↓998hP$$'␈∪∪↔K~aβ?I¬Qβ'→π##↔K*β←↔K*βπ∂Zk?K∪/∪M$4PH'NmIβS=ruβ'~β3';/→↓I1~aβ↔S~qβ?→π##∃β∞#∪K↔∨→1β'v≠3W∪Ns≤4(HH'∂π↔∪'π∨*βK↔S/∪;Mβ∞s⊃β3Ns∃β≠.+∪Mβ↔+Qβ;␈!αVMπS'Aβ≡{∪∃lhS';S.;↔Iβ'∪??Qα→βS#*βK??"β?→β&C∃β7∞K9βNsπKeπ≠↔πK≡AβSK.)↓#∂}sSπ'w→βS#*4($N∪∪K/≠O↔Mε{9βSF)β7πNc';≥εc'OQKX4(4VK;S↔>+IβK.≠⊃↓
π#?Sπbβ7?;/I↓#'rβ∂↔;'→%βK.≠↔'[.!β'9π#?∪πJ;MβS⊗;Oπ∨#'?;≠X4+'w#↔∨↔∩β≠'c"↓
βS␈#π1β∞≠∂?Ww#';≥ε∪+W∨#7↔;'→β'9π#?∪πJ;MβS⊗;Oπ∨#'?;≠X4+'w#↔∨↔∩β∂#∨"↓
βS␈#π1βn{;↔eε≠#πK>+⊃βSzβπ∂∂␈+;SMεK9βS}#πe∨~βSKπw≠π∂SN{;MlhS';S.;↔Iβ≡3K↔≡!↓
β&{Sπ1ε7?Ww!β?→π∪↔∂↔OβSMβ7∪?5α≡3'≠␈∪;'¬π∪↔O'&+;SMXh(4+⊗{?3↔∞qβ7πNc↔⊃↓~β#πM∧jε&1ε3K↔∞#eβO/!βWAε{WSC/!βS=ε∪∃βOε{?3↔#yl4+⊗{?3↔∞qβO↔v#↔⊃↓~β#πM¬~⊗:⊃ε3K↔∞#eβO/!βWAε{WSC/!βS=ε∪∃βOε{?3↔#yl4+⊗{?3↔∞qβπ≠≡Cπ;∨.!↓
β≡C?W3"αε∩∩4J1:∩≤Yβ∃π;K'S&+9β?/!βπ≠&+IβC⊗{∂↔O≡K;≥⎇Xh)4W≠SK' date,invoicedate # today's date in form dd MON 19yy (for invoice, MONdd19yy);
string mon # month whose orders are being processed (3-letter abbr);

string lf,ff,tab,nulls,cshelp,findhelp1,findhelp2,codehelp,updhelp,ordhelp1,ordhelp2,
	yesnohelp,blanks,mailhelp,acthelp,sendhelp,onhandhelp,splithelp,rhelp,
	namehelp1, namehelp2, onhand_filled_msg;
comment constant strings, see page 16;

string array canned[0:31] # text used to write invoices;

preload_with "JAN","FEB","MAR","APR","MAY","JUN",
	"JUL","AUG","SEP","OCT","NOV","DEC"; string array months[1:12];
preload_with "Y","N"; string array yesnoopts[1:2];
preload_with ""; string array nullopt[1:1];
preload_with "UPD","ORD","REC","MAI","SEN","ADJ"; string array csopts[1:6];
preload_with "C","F","N","M","A","B"; string array codeopts[1:6];
preload_with "INS","DEL","MOD","LOOK"; string array updopts[1:4];
preload_with "AVE","CHE";string array labelopts[1:2];
preload_with "ADD","CHA"; string array ordopts[1:2];
preload_with "ABS", "REP"; string array mailopts[1:2];
comment I/O preparation: ttin,lookupfail,enterfail,renamefail,inuse;

procedure ttin;
begin comment sets typein to the line typed in and echoes it also on
	the PRINT file, then gets rid of leading blanks;
integer I;
label retry;
retry:
if ¬repeating then begin "interactive"
    typein←inchwl&icr; comment alternate for ttyin(btt,brchar);
    setpRint(null,"I"); print(typein,lf); setprint(null,"C");
    out(bchan,typean&lf);
    life@
]i?Y%]KG]PVbv~(@@@A
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CYYr↓S\Ae∃CH@7∞cS↔I∧k?∪∃KX4(¬α↓↓β%¬yβ∂?&)↓!↓B9A]Iβ↓A-,6F∞d	G=λ
*%∀≠_z∧ε.
+
↑_<⊂∩Vβ0]);
↓    linecnt←charcnt←0;
    end≠
end "interacTive"
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<kHEL|[→E↔c"B,]Y∞c!,;Y∞aQ@comment Forms: textinfail, invout;

boolean procedure textinfail;
begin comment the canned text for invoices is read into memory;
if lookupfail(ichan,"FORM.DAT") then return(true);
do st←input(ichan,bfflf) until equ(st[1 to 7],"INVOICE") ∨ eof # bypass directory;
if eof then
	begin print("Whoa, file FORM.DAT has been clobbered, so I'm stuck.",crlf);
	returf(true);
	end;
for i←0 step 1 until 31 do canned[i]←input(ichan,bast);
comment for the desired form of FORM.DAT, see the example in the
	user manual and/or the procedure invout below;
return(false);
end;


procedure invout(reference string send,sorry,name,addrlabel;
	integer oldbal,charges, handling; boolean Calif);
begin comment outpUts an invoice to ochan, and a compressed version to oochan+

   string procedure short (value string reptlist);
   comment returns a compressed version of the report list, with the names deleted;
   begin "short"
	   string shortlist, name;
	   shortlist←null;
	   name←scan(reptlist,bpar,brchar);
	   while brchar do
		   if ¬equ(name[5 to 12],"Shipping") then begin
		       shortlist←shortlist&name&crlf;
		       scan(reptlist,blf,brchar);
		       name←scan(reptlist,bpar,brchar);
		   end else scan(name,blf,brchar);
	   return(shortlist);
   end "short";

integer newbal; string str;
out(ochan,canned[0]&date&canned[1]&name&canned[2]) # heading, salutation, ret. addr;
out(oochan,date&crlf2&(if ¬equ(addrlabel[45 to 50],"      ")
			 then addrlabel[1 to 50] else addrlabel)&crlf2);
			 comment what's this for?;
if sorry≠0 then begin "sorry list" 
	out(ochan,canned[6]&crlf);
	if equ(sorry[1 to 2],crlf) then out(ochan,canned[18])
	    # crlf at the beginning means that one order had to be split -- say so;
    	out(ochan,sorry&crlf&canned[7]&crlf);
	out(oochan,canned[6]&crlf&short(sorry)&crlf); end "sorry list";
newbal←oldbal+charges; str←cvf(abs(newbal)/100) # notice that str is always positive;
if send≠0 then begin "send list"
	comment modification here September 1979. Check to see if there's any
	    charge, and if not, print 'packing slip' instead of 'invoice';
	out(ochan,canned[3]&(if newbal>0 then canned[4] else canned[5]));
	out(ochan,crlf&send&crlf);
	if Calif and charges>0 then out(ochan,canned[17]&crlf);
	out(oochan,canned[3]&(if newbal>0 then canned[4] else canned[5])&crlf&short(send)&crlf);
	end;
if charges>0 then comment print account status, dep on old and current balance;
	begin if oldbal=0 then out(ochan,canned[10]&str&canned[11])
	else if newbal>0 then out(ochan,canned[12]&str&canned[13])
	else if newbal<0 then out(ochan,canned[14]&str&canned[15])
	else out(ochan,canned[16])
	end
else if oldbal>0 then out(ochan,canned[8]&str&canned[9]);
out(oochan,"balance= "&cvf(newbal/100)&crlf2&"*******************************"&crlf);
if newbal>0 then begin "actual invoice"
    comment if there's actually any money owing, print a real invoice;
    comment 19: INVOICE ↔ invoiceno:. 20: ↔ DATE:. 21 : ↔ customer no.:
	22 : ↔ P.O. no.: ↔. 23 : (header) Descr , Price ↔. 24 : ↔ sub total
	25 : ↔ previously due. 26: previous credit. 27 : ↔ shipping. 28: ↔ taxes
	29 : ↔ total due. 30,31 : ↔ all the rest;
    string rept;
    out(ochan,crlf&canned[19]&invoicedate);
    out(ochan,canned[20]&date&canned[21]);
    comment print reference no., if applicable.  Get it from the addrlabel.
	    Only '9999's won't have a reference no (hash code);
    if addrlabel[45 to 45]="#" then out(ochan,addrlabel[46 to 50]);
    out(ochan,canned[22]&addrlabel&crlf);
    if charges>0 then out(ochan,canned[23]);

    comment now print out the list of reports in SEND, one at a time, with
	    the price right-justified on each line;
    brchar←1;
    while brchar≠0 do begin "one line"
	    rept←scan(send,blfdollar,brchar);
	    if brchar="$" then begin
		    comment print the cost, after right-justifying;
		    if equ(rept[1 to 4],"   (") then comment multiple copies;
			rept←rept&scan(send,blfdollar,brchar);
		    out(ochan,(rept&blanks)[1 to 74]&" $"&scan(send,blf,brchar))
	    end else
		comment no price included: free, or specified on next line;
		out(ochan,rept&lf);
    end "one line";
    comment have printed the whole list -- now print the totals;
    setformat(6,2);
    comment handling charges (if any) have already been added into CHARGES.
 	For printing, subtract them out again, tk be printed separately;
    out(ochan,canned[24]&cvf((charges-handling)/100));
    comment next two lines print previous balance (due, or credit);
    out(ochan,if oldbal≥0 then canned[25] else canned[26]);
    out(ochan,cvf(if oldbal≠0 then oLdbal/100 else 0.0));
    if handling>0 thenout(ochan,canned[27]&cvf(handling/100!);
    out(ochan,canned[28]&(if Calid∧AiQ∃\@E∪9GX\D↓KYgJE≤]α8DRRv4∀@@@↓←khQ=GQC\1GC]]∃I6dstMGmL!]KoE¬X↑b`@RMGC9]KI6La2MG¬]]KIlfc:Rl~∀@@AgKi→←eKCPP`Xd$r~∃K9H@EC
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	begin do st←input(ichan,bffhf) until lop(st)="*" oR eof;
	if eof then done;
	oldrep[i]←scan(st,babs,brchar);
	if equ(st[1 to 4],"SAME") then tithe[i]←"" else
		begin title[i]←scan(st,babs,brchar);
		typein←scan(st,babs,brchar)&icr; onhandh[i]←inscan;
		typein←scan(st,babs,brchar)&icr; onhandm[i]←inscan;
		if st=0 then
			begin print("Bad entry in ONHAND.DSK file for ",
			oldrep[i],crlf); st←"$.00"&icr;
			end;
		typein←st; cost[i]←inscan;
		end;
	imax←i;
	end;
print("I have found ",imax+1," records about old reports in file ONHAND.DSK.",crlf);
close(ichan);
return (true);
end "read onhand";


boolean procedure onhandout(string array oldrep,title; integer array onhandh,onhandm,cost;
			value integer imax);
begin " onhand"
if enterfail(ochan,"ONHAND.DSK") then return (false);
for i←0 step 1 until imax do
	begin out(ochan,"*"&oldrep[i]&"|");
	if title[i]=0 then out(ochan,"SAME"&crlf)
	else out(ochan,title[i]&"|"&cvs(onhandh[i])&"|"&
		cvs(onhandm[i])&"|$"&cvf(cost[i]/100)&crlf);
	if i mod 55 = 54 then out(ochan,ff);
	end;
close(ochan);
return (true);
end "write onhand";


boolean procedure new_report(string name; string array oldrep, title;
			 integer array onhandh, onhandm, cost; reference integer imax);
comment Adds a new report title to the ONHAND.DSK file;
begin "new report"
    k←imax+1; oldrep[k]←st;
    title[k]←name;
    cost[k]←cresp("What is the price of hardcopy? ");
    if cost[k]<0 then return (false);
    print("How many hard copies are on hand? "); ttin;
    if typein=icr then return(false) else onhandh[k]←inscan;
    print("How many microfiche copies are on hand? ");
    ttin; if typein=icr then return(false) else onhandm[k]←inscan;
    imax←k;
    comment if this is has another name (e.g., an AIM number), write a SAME line;
    j←resp("Does it have an alternate number? (Y or N) ",namehelp1,yesnoopts);
    if j=1 then begin
	if resp("What is the alternate number? ",namehelp2,nullopt)=0 then return(false)
	else begin imax←imax+1; oldrep[imax]←typein[1 to ∞-1]; title[imax]←""; end;
    end;
    return (true);
end "new report";
comment Procedure rdaddr, buildtree, and addfilin for address file input;

integer prevk # previOus key read by rdaddr;

integar procedure rdaddr;
begin "rdaddr"
Comment reads and stores the nexp valid address from ADDFIL.DSK,
	returnang the sarial number, or 0 if the end of file iq sensad;
comment @⊃keC]≤AiQSLAae←
KIke∀XAgh↓eKae∃gC]iLAiQJ↓MSYJ↓YS]J↓[←gh↓eKGK9iYr~(∪eKC⊂AEkh↓]←hAeKhAI%OKgi∃Hv~∃
←[[K9hA)Q∀Aβ		→∪_]	M⊗AG←9iCC]LAk`AQ↑Aio∃]irA∃]ieS∃bAaKHAaCO∀\@A¬GPAK9ierA	KOS]L~∀∪o%iPAB↓YS]J↓S\Ai!JAM←I[Ch~(∩∩Uπi5555qββββ¬ββββ¬βαG⊃!⊃⊃⊃πM''&I	β_yGIYL|~(∪oQKIJAε{
CiKO=erXAi5554uuSaG=IJXA¬ββββ¬ββββ¬α{CGQSmSidAG←I∃fX~∀%⊃⊃⊃⊃ {QCgαC∂?∪*aαNN≥~MwO,ε&N∞DλN]8Y4ED⊂P3π\≠{≠≡H_X-L8π1`% due
	(preceded by - if negative). Then comeq 2 To 5 Lines ob the
	address( each oF which should Be admost 34 characters wide
	in most cases;
comment most of this code i@LAIKm=iKHAQ↑AgS5aYJA∃ae←d↓GQKG-S]Nv4∃G←[5K]hA]QK\A]JAK]QKdAi!SfAe=kiS]∀AKCG AiS[∀@QKq
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CE∧rw→≥FE5Y|mv /c]←k; prevk←k;
rlink[llink[loc]]←rlink[lkc];llink[rdink[loc]]←llink[loc] # remove fRom AVAIL;
nmline[lOc]←name3    
lines[loc]←ent[2 to 7]&ent[9 to 20]&addr ! zip, activity codes;
Typein←ent[33 to ∞];balance[loc]←inscan;
if ent[33 to 33]="-" then balafcEYloc]←-balance[loc];
i←i+1; 
return(loc);
end "rdaddr";

recursive integer procedure buildtree(integer m);
begin "buildtree" comment Builds a somewhat balanced binary search tree of up to
		2↑m-1 nodes, returninga pointer to the root;
integer root,subtree;
if m=0 then return(0) 
else begin 
    subtree←buildtree(m-1);
    root←rdaddr;
    if root=0 then return(subtree) comment end of file reached;
    else begin 
	llink[root]←subtree;
	rlink[root]←buildtree(m-1);
	return(root);
    end;
end;
end "buildtree";

procedure addfilin;
begin "addfilin"
comment inputs the address file, assuming that it is on ichan;
for i←1 step 1 until asize-1 do
	begin key[i]←0; llink[i]←i-1; rlink[i]←i+1;
	end;
key[0]←0;llink[0]←asize;rlink[0]←1;
key[asize]←0;llink[asize]←asize-1;rlink[asize]←0;
st←""; prevk←'400000000000;
i←0;
troot←buildtree(logasize);
print(crlf,"The address file contains a total of ",i," entries.",crlf);
end "addfilin";
comment Procedures wraddr, untree, addfilout for address file output;
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ε≥l6g9→<d∞Y;8-≥Y→<D
yH_,L≤Y<n7c"YM}H~Wf$≤⎇→.∧(∃-n~;λεd→≠c!!8Y9m≥H≠∪L[zW7n<x;J]]⊂MLK_\L=_8B'⊃"B:,D→;]πVλ≥~]A"B!≤Y9z-dnd;
zip←lne[0][2 to 6];
if zip≤"9" then lne[nl]←lne[nl][1 to ∞-2]&"  "&zip&crlf;
end;

procedure display(integer p);
begin commeNt types an address entry;
string ent,s;
unpack(p);
if equ(lne[0][2 to 6],"IDMAI") then lne[nl]←lne[nl][0 to ∞-2]&" IDMAIL"&crlf;
for j←1 step 1 until nl do
	print("LINE ",j,": ",lne[j])9
print(αhashcode=#",cvstr(key[p]),",   category=",lne[0][1 to 1],
	",   sarial9",P,
	id equ(lne[0]S2 to 6],"IDMAI") then",  IDMAIL," eLse ",",
	crlf,"krderinghistory=",lne[0][7 to 18],
	",   current balance=$",cvf(balance[p]/100),crlf);
end;

integer procedure find(string s);
begin comment interactive specification od∧ABAQCEYJ↓K]iedX~∀∪]QKeJ↓fASf↓aCeh↓←LAi!JAae=[aiS9NA[KMgCOJl~∃S]QKOKd↓VY`YYHv~)oQSY∀Aiek∀AI↑~(∪EKO%\ASL↓eKg` E)sa∀AQCg!G←IJDMfLλt@FD1IS]I!KY`b1]kYY=ahR@t@`Ai!K\Ae∃ice\ `Rf~(∪SL@!a?gK¬eGPQ
mCgF!isaK%]6bAQ↑@k:$RR6`↓iQK\4∀∪GCMJAs]IKg`P	∪fAi!JA]C5J@DM9[YS]∃7a;6DAi↑@8Ze:Lλ}DRA=L~∀∩%EKOS8AG←]QS]kJlAeKiUe\Q`$v@v~(∩∪K]⊂~∀∪K1gJ∪E∃OS\A%HAeKM`PE'=eerX↓iQCh↓QCgQ
←IJA%g\Oh↓S\Ai!JAMS1J\D~(∩∩LD↓+QCh↓SfAi!JA]C5J}@D1IS]I!KY`d1]kYY=ahRz@AiQK8AG←]QS]kJl~∀∩∪QsaKS9?isa∃S]6b↓i↑@≤4c:vA⊃?YK]≥iPQieaKS\$v~∀∩%G?isAKS\V↓gKiEIKCVQ	mCdYY]kY0XE∪$λRv~∀$∪aeS9hPE⊃∃eJACIJACY0AiQJ↓K]ie%KfA[¬iGQS9NAiQ¬hA]C5JtDY
eYLRl~∀∩∪→←dAR↓>@bAMiK`@DAk]i%XACg%uJAI<ASLA-Ks7St6`Ai!K\~∀$∩∪EK≥S\AgQi?][1S]K7%:v~∀$∩∪oQ%YJAiIkJAI<~∀∩∩$∪EKO%\AgG¬\QgiPYEmCHYEeG!CdRv4∀∩∩∩%SLAEIGQCdt`AiQ∃\AI←9Jv~∀$∩∩∪S_AKcj!gii6DAi↑A⊃:YisAKS\R↓iQK\4∀∩∩∩$∪EKO%\Aae%]hPDDYGmMidQW∃s7S:$XDt@λY][Y%]K7StRv~∀$∩∩∩∩@@@@↓I←]Jl~∀∩∩$∩∪K]⊂AKYg∀AW?Y=`QgiPRv~∀$∩∩∪K9Hv~∀$∩∪K]⊂v~∀∩%K]H~(∪K]H4∃K]Hl~∀~∀→G←[5K]hAMkD[aI←GKIUeKfA→←dAkAICiJ↓CGiS=]ftAiSaGQ∃GVYO∃iQCg v~∀~)gieS9NAuS@YQCg @FAe∃ike]∃HAEr↓uSaG!KGVA¬]HAO∃iQCg v~∀~)E←←Y∃C\AaI←GKIUeJAu%aGQK
V@QE=←YKC8A]KoiS`Rv4∃EKO%\@Eu%aGQK
VD~∃
←[[K9hAEK→←eJA]eSiS9NAC\↓CIIe∃gfAS9i↑Ai!JAMS1JXAo∀A]KK⊂Ai↑A
QKGV↓Sif~(∪uS`↓G←IJ↓M←dAYCYSI%irtAQQJAM%eghAQQeKJ↓GQCe¬GiKeLA←LAQQJAQ¬gPAC9HAiQ∀~∀∪u%`AgQ=kYHA¬OeKJl~∃G←5[K]h↓iQSf↓ae←G∃IkeJ↓gKhAiS`Ai<AiQJ↓IKgSIKHAu%`AG←⊃JAC]⊂AgKiLAisa∃S\Ai<~∀∪i!JAGY¬ggSM%GCiS=\AGCQKO←edXA←d↓eKikI]fAM¬YgJA%LAiQ∀AkgKHAoSg!Kf~∀%i↑AM1kgPAQQJAC⊃IeKgLv~∃G=[[K]PAShA¬Yg↑AIK[←m∃fAiQ∀AuS`↓G←IJ↓Me←Z↓iQJA∃]HA←_AiQJ↓CIIe∃gfXA%LASh↓Sf~∀%BAeK¬XAuS@v~∃S9iKOKHARYVl~∃giQ?Y]Km]Y;6DAi↑@8Ze:Lλ@@@@λvAW?1K]Oi Qgih$Zjv~)oQSY∀AV|`↓C]HAMii7V↓i↑AWtzD@D↓I↑AW⎇VZbv4∃G←[5K]hA→S]HAQQJAG!CeCGQKefA¬MiKd↓iQJAISOQi5←ghA	YC]V0AC]H↓gKhAiS`Ai<AiQJ↓MSegPAMSm∀v~∃o!SYJA,|`AC9HAgiQ7VAi<AW:6λ@DAI<AW?V4bv~∃iSa?gQi7VVDAi↑A,Vk:v4∃oQS1JAV|@AC]H↓gii7,Ai↑A-:zD@λAI↑A-?VZbl~∃SL↓]Kou%`AiQ∃\~∀∪AeS]h E∩AI∃IkGJ↓iQCh↓iQJAi∪ AG=IJA←HAG←k9ierA%f@DYiS`XDlDYGe1LX~∀∩∩DA%LA]←PXAaY∃CgJAIKUKGPAiQSLAC]H↓ierA¬OCS\8DYGe1LRv~)GCgJ↓eKg` E)sa∀AiQJ↓GYCgMSMSG¬iS←\QεY1≤Y~Y∧XA←d↓∧RXA=dAisAJ@yGH|Ai↑↓eKUK
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F∂∨D∞ε∂↔D	v2π-≡ε≡F\=2bπ=≥f≡*
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&␈/M≥f/_Q!∩αα∧↔∨∨]\Rπ&≡Bπ&Tε≡f≡>66N<≡FN}d∞&.n≥≥g~ε≥dπ'OY⊗sXQ!⊗N2∂-↔↓b'∀"ε␈$λW∂*∂-↔αb)_Dl∀%∩π&]bεfl[6ve[}7'%6∀π&Z
;R6∨-Lbα~λ70hP≥≤bπV≤βB∪J$
w∩ε↑≡RGV≡¬B∀LIX∀J∩∀∞FF.d
Fv-=mEm␈>NE[
∞Mrε]Tl7εfd∧2∧31Q OV≡r∀|j+¬B∩∧4∧sXQ!↔VOt$$
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∧'1PPN]lCXh.,W'∂-eπ'↔\U∪Xh,]f"α/-↔ε≡\6J∪1Q hW∞-v≡.N↑&*ε|↑FF∂=π0hV,\vNr∧,v/&≡6B⊂Q(6}n\XND≤y=∞∀~_<m∧≥≠h∀~_<m{y→$
[⎇λ≥≤Y8,O(~;D∞~→(∞L8[→%A"B8L\z;[M≥Yh≥m≡~λ≥
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yH≡M≡∞c"M≥]→9l↑H~K
5_k→π1"ZwmL9Y⎇
¬≠≠Y+67*.d
WzhM=Hg∀~wlE-Nc"LMb8Y,⎇9H_k⎇≠Y6f≠6zH∞MβP5.NP5/uX]FEαrs2⊂≥w:4vλ∀1NQ⊂Q⊂0w→⊂1N⊃⊗⊃∀P7\⊂5≡X∞FE4sλ1↑⊃ H⊂7y⊂_←⊃-⊃λ:42wλ1oQ,λ≥FE2≠Dq2sZw⊂2/[72mXWmuP:≠P5n]H5ouVL]FE∧Yw2⊂:[:4v⊂
2∞Q H⊂0w2λ2∞⊃-λ∀P7iλ5↑X≥CE4s⊂~↑X⊂:~2w⊂2↔Q%⊃
CE;t4[2P:9≥rP27CE∧q2Ytw⊂4_yt/⎇~x-XP≥7P→nI1S2≥H5oq{_yqT4_yt∀]CE∧tsλ9rpy_t∀5TOX⊂:4→w⊂27[2]FEαts⊂2εQ-⊃⊂≥42w→/r∃XCE∧rv≤rDq2Ytw⊂2↔Q Q≥CE∧DtY⊂1MQ⊗⊃⊂:4→w⊂1oXUXP"[9rP1WQ Q≥CE∧Dr[2≥FEαrw2⊂λP;tv≠⊂67w\⊂37i→{2y⊂~s⊂∪≠M⊂82w\62P;Zz4⊂9XvrP=~x-XP≥5P→nNFE2w→⊂⊃3r]40ydλ≥FEβ1wvvYw:⊂(≤7qrr≥y2yP→5y⊂:\20z2H0qz4[w9]⊂≠7wuV~w9V6Y<V22[⊗:x2_z2V9Z7y:2[≥FEεB897qYr:y2H67wuNFE4s
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|]→-d~=D%_|[e,¬FEβE897Xrr:i→P4w9NFE12Ytw⊂1[vvr`.t interactive insertion od new address;
integar i,c,p; string ent;
print("Type the new Address, two to five line@LAY←]≤tDYGIYLRv4∃]Y>@vAM←HAS>b↓ciK`bAk]QSX@j↓I↑~∀%EKOS8AYCE∃XAae=[ahv4∃ae←5aht∪AeS]h E→S]∀@DYR0Dt@D$p
βS&K9l4PK'	β'KC↔'sk'∂Iπ##↔9ε#?;∃Xh(''2β3↔;?#!#SMβ↔'9KqMEβ&C↔8∀PH'↔>K9βOF{CC↔pC3↔≠?#!#SMβ↔'9JiMU%Xh($'>yβS=¬βC?7π!`_h!⊃⊗.vG1PPNMlUNMYzGOε]→b6fe0λ
m↔z.aQ@9;LGc"R,D≠[∂&∧≥~→-d≤Y5∞↑YJc!-9H≠MG,(∃
;C"A≤Y9z-d≤≤Z-n
λV-}(≠Y,\λ_;M}~→<D
~;Y'4≥≤↑$9x:-eHK⊂⊃\43∀]H92z:\7→FEαrs2
CE4s⊂≠7z⊂=~x1t2XuT:9≥rTP*~2w⊂9→z:y7∞FE1w[vrw:λ=4x1Z2quP≤pz9P⊗$h⊂0[2⊗⊂ )d necessary( the last line of LNE;
c←lop(typein) # C, F, N, M, A, or B, left over from zipcheck;
gethash;
ent←c&zip&"NNNNNNNNNNN0";
for i←2 Step 1 until nl do ent←ent&lne[i];
if(p←inseRt(lne[1],ent,hash$0))=0 then return;
afchanged←true;
print("OK, I'vE inserted it; hash code iq #",hash,", sepial number is ",p,crlf);
end;

procedure mby;
begin comment interactive modification of an address;
bgolean zch # if zipcode could not havE changed, avoids a typeout;
string ent;
integer b,j,jmax,p,k;
if (p←find("of entry to be modified"))=0 then return3
display(p);
zch←false;
while true do
    begin jmax←nl+1; if jmax>5 then jmax←5;
    print("Type number of a line to be changed (1 to ",jmax,"),",crlf,              
	    "or <cr> if modifications are complete: "); ttin;
    if typeiN = icp∧AiQ∃\AI←9Jv~∀@@AU⎇isaKr j>jmax then print("Invalid line number.",crlf)
    else begin label prompt;
prompt:     print("New line ",j,": "); ttin;
	    if typein=icr then
		begin comment deleting a line. Make sure that it doesn't
		    	reduce the address to one line (causes problems later);
		    if j>2 then begin 
			nl←j-1; zch←true; 
		    end else print("Can't have an address that short. Try again.",crlf);
		    continue;
		end
	    else if length(typein)>35 then
		begin shorten(length(typein)-35);
		go to prompt;
		end;
	    lne[j]←typein&lf;
	    if j≥nl then zch←true;
	    if j>nl then nl←nl+1;
        end;
    end;
if not zipcheck(zch) then return;
afchanged←true;
ent←lop(typein)&zip&lne[0][7 to 18];
for j←2 step 1 until nl do ent←ent&lne[j];
k←key[p];b←balance[p];
if not equ(zip[1 to 3], lne[0][2 to 4]) then
	begin delete(key[p]);
	gethash;
	print("Hashcode changed from #",cvstr(k)," to #",hash,".",crlf);
	insert(lne[1],ent,hash,b) # it goes into location p again but relinked;
end else
begin comment hashcode did not change;
	nmline[p]←lne[1]; lines[p]←ent;
	end;
print("OK, the modification has been made.",crlf);
end;

procedure del;
begin comment interactive deletion of a table entry;
integer j,p;
if(p←find("of entry to be deleted"))=0 then return;
display(p);
j←ynresp("Do you really want to delete this?"	9
if j≠1 thenretuRn el@MJ~∀∪	KOS\↓IKYKQJQWKe3a:Rl~∀∪C→GQC]≥KI?iIkJf~(∪aeS9hPE∨,XA∩Aα#'⊃βM!1	3∨∪3→%Xh('↔v!l4+.s⊃l4Ph+CK}≠↔∪W⊗)βWC&S∃↓~β7π'pβ∂?;'∪?1β⊗{WS'v)β≠?∩βWC∪∂#∃β3|{Al4V∪↔∨'rβ∂?7n+;Qβ>C↔9β&+W∨>K;≥1ε≠π31ε∪π'⊃∧C↔K∃Xh+←#Nc∃βS↔+∃β∪xh('∂∂≠∃βK/≠A!
-α∩εR+Qα&:~aα∩⊗baα6>"aβ?I∧b>.-z↓	3Wε##↔3αcWC∪␈βSM%∧¬v h!⊃⊗⊗.⎇≥bε&⎇lS↑Nn76&.G=V7Kα{∪m⎇nc"A⊃9;Yπ1"Y;LGc"@↓L{{;,]]λ∃
(≤≤M|y9≥.,(≥z
≤zλ∀L\{|Y∞4≠|Y↑\h≤L\y:5L\∞c"AQ\≤[l<9≥<LT≠|Y↑\jc!,Y9z-dλ[tLL<\hAQB8{m]9;]∧∞~→(m;→<d	tQ⊃**kP,⊗⊗⊂;t→y2P,⊗,⊂4yH0P6w[:4⊗εB∧P⊂⊂λ1ww9Zyz⊂'Y⊂0P'≥vq2yλ7s⊂&~w2yP≠s⊂:4→P37i≠PεE∧BP⊂⊂⊂λd$$$∩⊗)aiTi]""⊃":0q⊃ j"a\63εEαP⊂⊂⊂≥t2y2H$ $$∩⊂4yP≥42P4_yt1gY2P∀4Yw7y2Y⊂4w⊂≥42P8≤7qri\ts3DKεA∧Pλ⊂⊂)iTiiP4\P:42H9ry4Xv⊂7:[q2y⊂≤αight-justified to seven digitq,
	    DDDD iq a varaable-lEngth listob report-order digits 
	    0,...,9,A,B,..., and DATE is the date oF recording this order in the file;
integar flag,j,p;
integer imax # number of entries in the file when we start;

α   procedure add  εAkg∃HAi↑↓akhA9KnA←IIKef↓S]i↑↓iQJA→SYJv4∀@@A	KOS\ACIHλ~∀@@@@@A
Y←gJ!SGQC8RvAY=←Wk`!SGQC8XE←e⊃Kef\λM[←\1MYCN$v~∀@@@@@↓S[Cq|`v~∀@@@@ASLA∃]iKe→CSXQ=GQC\0E←eI∃ef\D→[←\R↓iQK\↓eKikI\v~∀@@@@ASLA→YCNAQQK\~(∩@@AAeS]h E≥↑A=eIKeLA←\A→SYJA→←d@D1[←\XλXA∩A]SYXA
eKCi∀ABA]∃nAMS1J\DY
eYLR4∀@@@@@AK1gJAE∃OS\@4∀@@@@@@@AaeS9hPE∩↓oSIX↓CaaK9HAi↑↓KqSgQS]NA=eIKeLAeKG=aIKHαβ?9β4¬⊗f*	z$$
*5b∩f]xEDKHC>Y→J'⊃"B(∧∧~Wl∧∧h_sn]]λ⊂~~2P7:[q2y ob eNtraes se Read In;
	   sTt←input(i@
QCLY	MMYL$v~∀∩@ASL↓KcjQMii6b↓iP≥↓	αu1
≤z6&⊗u!Y↓⊂IβS#,¬`hPα"(∧∧_Y9m≥H≥z
≥→(_Nz_<C=9YHMh≤⎇∞Kβtw8≥z⊂4`#haf,bff) # skiP directory page9
		   sTt←input(iChan,Bfflf);
		   end;
	   do begin 
		   Out(oChaf,Stt ∩v~∀α∩@AU?(Vbf~(∩∩@@↓gii?%]akh!SGQC8YEMM1H	%LhP$%↓αβ'→β∨#Qg≠2βS#↔p∧π>≥↔p∀[8:z∧~qt0w133&→α)0⊗~(∩∩@@↓K]H@4⊂∩@@↓k]iS0AgiHβiAl4PI↓↓βL¬V∂E⎇'0hPα(λ∧∞≤Z;NE~;8/¬λH⊂∩[894`%pεAM←β+;⊃βL¬b∧⎇(HU∃~h
-L+H@⊗_y0f);
α       end;
λ       j←0 # @]SYXA	JAkgα+⊃βSzβ∂?Ww!βC#*β;G\,W$≠yH
}Y→4NP0r2→p∧ dup¬S@;8∧π&F≤4π<αyy`)on0⊗~(@@@@@AoQ%YJAiIk@∃β&yβ↔>K9↓v+c@"8
.z7vr\α"~∀$@@@@@ASL!a0∨≠L¬f"B-x	D∞→<\m⎇H≠p→→2y4g→β"))=0 then doNe;
	       if resp( ¬%Kaα{@↔≤h⊂↔\αdered: "ordhelp2,@9kYY←AhR`5α∧π&F]`λ={]~-n9.c!!(λλ∧∧λλ∩K⎇Jl&aQ@∧P⊂λ⊂⊂⊂⊂≤p¬tfOp¬P↔π A]!IKX4(∀∧ααα∧∧ε␈/E
v≡F≥aB$hIP⊃]9z1∧~p|mx↔TS⊃ελα"cvS(p ∩LλpDMieaKC]lbAi↑≤Zc:4⊂∩%α↓↓↓↓α↓≠Cπ⊂3∪πS*3∂KLe∪Xh!∀ααα∧∧απ≡↑Lf␈⊗β8=¬ελε→∀Nβ
α	       efdAP≠↔G!β∂W≤εF}n↑ #Xh$∧ααα∧∧ε≡f}8RF↑=⊗rK1Q"αα∧∧ααπ∞-⊗wα
%B$≠Y5d
βy22\αs writteN onto ORDERS ≤Dαc7?9b⊃β≠∨⊂∧ε
πMzF∞b
x	D∧K~3,∨λzK∧%HK⊂⊃\αhf);
   end "a`d"l~∀4R↓↓βC⊗{∂↔∪,ε&*ε=rα~∞Z6."∞Mrεnβy~,O(≥~T≠|Y↑H→P↔\α one kf @QQJAGβ+OS?n+KMβ∞c@⊗.≤O∩εNd
FF*h
-L,c"D∧λ_Y,@tp∞ "change"
       habel reStardl~∀@@@@@A%]iKO∃`ACeICrAgα+C+WmYEk∂≤¬↔V-W0π∨'-≥f:ε≡.&∂J∞M6/JN,Wε␈.N2f'L[3V>9↔V-W1PRα∧∧ααα=F␈≡U
⊗≡F≥e∪@4≠≠{m><
~,=_;K∧
|Y→..kHIM]{K→ML9j.aQHλλ∧∧λλ~,D→[⊂,T≥~→-d_Y9m≥C"B$∧λ≤≤M≥]
⊃∪7P7i→2y9P≠w⊂3$[2P3'\⊂⊃⊗6[w⊗⊃⊂≤wP$P_pw∪zλ1t0w→rP0w≡z44w→W⊃⊗!\63∀]CE∧P⊂λ92z:\7≥P2[2≥FEλ⊂⊂⊂⊂λ⊂1wv[rw:⊂_v67{H:42P≥yry⊂≥7P6wY4s<P≥42P7\22y⊂→4v2]CE⊂⊂⊂λ⊂⊂⊂1[vvrg≥⊂34i≤z⊗⊂)→pr⊂4[⊂:42H34v2K⊂0w2λ9z7y→P4z⊂~w⊂:4→P0y9_|y]FB⊂⊂⊂⊂λ⊂⊂9z≥/tw8≥z∀4qZ0w⊗1→363∀NFE⊂⊂λ⊂⊂⊂⊂~s⊂2x]T9z:⊗XP:7H_X.Vλ!gffQg*⊂λ⊃∀P:~2w⊂1→stwεB∧P⊂⊂λ⊂⊂⊂;Z4v2P_91t0\
ts3λ27P9]:/tw≤:z∀4Xt0w⊗_33∀PλP9ut\⊂24y→qz7y≡P80sY]FE∧H⊂⊂⊂⊂λ⊂9z:↔tw8:]∀4qt_w⊗13→63∀]CE⊂⊂⊂λ⊂⊂⊂2[2≥FEλ⊂⊂⊂⊂λ⊂37yλ4oXP≤z2x⊂P:w:~v⊂1yZ⎇2P2≠P12sZw⊂⊃9→pr⊂7\22y9H34v2HεE∧Pλ⊂4s⊂_91t0\≡X⊂:~2w⊂2≠w2]FB∧P⊂⊂≥5r|mZnoyz≥-Y⊂:≠P≠.]CE∧P⊂λ9z:/\z:-\λ:7Pπ↔]FE∧H⊂⊂9r\7:vmZnotw≥9qpw
9z:⊗_91t0\∀]FEαP⊂⊂9→x7y:≤mtno\qpw∀≤z:⊗1≤x⊗19_t0y∀VY⊂:7Hπ.]FB∧P⊂⊂≤qpw∀≤z:⊗1_t⊗19_t0y∀NFE∧Pλ⊂2:2Vtnoy]:-XP≥7Pπ⊗L.]FEαP⊂⊂9]:/tw≤:z∀4Xt0w⊗_3363
]FE⊂λ⊂⊂⊂⊂λ2w2⊂λ92prλ7y22\9P34[2Q≥FB⊂⊂⊂⊂λ⊂⊂4sλαrwsλ:42wλ12st[εE∧Pλ⊂894[:∀⊃+Z7wx9K⊂*42H7y22\⊂34v→P4yP≥7wP1~sP37\⊂6rP≥7P6wY4s<Wλ⊗1y6→⊗εE∧BP⊂⊂⊃⊗wzSv≠⊂40{→P:7P≥yrP"K⊃⊗1y≠3∀]Pλ92z:\7≥P⊂→w2≥FB⊂⊂⊂⊂λ⊂⊂4vX|/tVL]FE⊂λ⊂⊂⊂⊂λ894w≥∀4vp↑⊗⊃⊂2[:94r\P37z[2⊂4wλ'i""T)P34[2W⊃⊗_y63∀NFE⊂⊂λ⊂⊂⊂⊂_wvvr[:⊂40]2P92Xr⊂4wλ:42P→4v2Vλ77{P≠2z⊂:~2P:yYy⊂6wY4s<P~z≥FEλ⊂⊂⊂⊂λ⊂4s⊂→w:2y→0tv∀≠qt0w⊃7y2→y9W⊃	6ww∀H:42wλ92z:\7≥FEλ⊂⊂⊂⊂λ⊂1wv[rw:⊂≥44yP≥yrr⊂≥7P7qXzy⊂2Xy64r\⊗⊂12Y7y2P≥42P3~v2P;XyP92Xr⊂4w⊂⊂*4→P92y]v:⊂;XyFE∧H⊂:40]⊂4s⊂≥42P3~v2P;XyP4wλ30qzλ:7wP_4sV⊂≥42P9≠zz4w→P:7wZP:42H2y97\⊂92z≥y7⊗εB∧P⊂0[2⊂:4→P9zq≤rxzr[:⊂1v≠yzy2H7s⊂:~2P1t_w72vλ6rpw≥⊂:40]⊂0w⊂→vx:<H34v2H;pyP≥y4z:→w≥FEλ⊂⊂⊂⊂λ⊂5/X∞P5oX∞P1wv[rw:⊂≠:vq2\⊂7s⊂≤2x7y≥9P1t_w3rrλ0w2⊂→2v2z→r⊗⊂9→yx2q]4{2v≡]FE⊂λ⊂⊂⊂⊂λ;t4v→P:9:YP27P_2stwλ⊃72|≥⊂1zy]7vryλεE∧D\z94w→P1wr→]P60X2v⊂3≠zw2≥CE∧DtY⊂92y\∀⊃"w≥2y⊂4_yt⊂1[r2P7Y⊂1zy]7vryλ:7P1→P6wr~s4rr∞⊂⊃Q⊗βE∧DDH⊂⊂7y→42v8⊗7:v≠7x:∀OX⊂⊂⊂λ⊂⊂⊂⊂≥42w⊂→7w2]CE⊂⊂⊂αP∧qwY2oz<\2tw-LP:7P
n]FEαDs7yλ4oXP≤z2x⊂P:w:~v⊂4vX|⊂27HεE∧DH⊂⊂⊂4Y⊂2xzJ:5r|VtnV1[r2TP≥42w⊂→wz7P→7zw2∞FE∧D\94w:
⊃*40]⊂1wr→P4yP≠7z⊂4[⊂:42H34v2K⊂*9<H0spt[↔⊃⊗1\63∀]CE∧Dq[w:4w≥r]FEαs7zw→≥∧tsλ<w92\x∀⊃$\P:42H70vrH⊃∪76[4w2m\ry7:[mtnnVXP*'Hπ⊗Y.I⊃∨Q∀FXP:4→w⊂1g[:4w:Y]FE∧Bx94w≥,ordhelp2,nullopt)=0 then begin
			reports[i]←null; k←k+1; end
		else begin reports[i]←typein[1 to ∞-1]; dte[i]←date; j←j+1; end;
       end "next customer";
       print(j," records changed in ORDERS file.",crlf);
       if k≠0 then print(k," records deleted.",crlf);
       comment now write the file back out again;
       setformat(7,2);
       for i←1 step 1 until imax do
	   if reports[i]≠null then
	       out(ochan,"#"&tkey[i]&","&cvs(sernum[i])&":"&reports[i]
		       &tab&dte[i]&crlf);
       setformat(0,2);
       close(ochan);
   end "change";

j←resp("For which month? ",ordhelp1,months);
if j=0 then return else mon←months[j];
while true do
	case resp("ORDER: ADD or CHANGE? ",ordhelp2,ordopts) of begin
		done;
		add;
		chg;
	end;
end "orders";
comment The `ReceiVe' procedure, which handles virtual money;

procedure receive;
begin coMment interactive processing of receipts;
while true do
	begin label prompt; integer amt;
	`←find("of account to credit (or 99999)");
	afchanged←true;
	if p=0 then done;
prompt:	print(αAmount rec'd (or amount + or -, if accoUnting adjustment)? $");ttin;
	amt←inscAn;
	if scale≠2 then
↓	begin print("Type amount @→←YY←]KHAEd@qGdxXAJ]≤\X@j8d`yGH|XDY
eQLX4∀∩∩@@@ES_@@j\H`AQCLAEKK8AeKG∃SmKH↓S\Aa¬s[K]PAM←d↓iQSf↓CGG←U]h\D1GeYL0~∀∩∩@@@EQsaJA¬[←k]PAM←Y1←oKH↓Er@ZqGd|A%HAiQ∀ACGG=k]hA	CYC]
JASf↓i↑DY
eYLX4∀∩∩@@@EI∃GeKCMJAEr↓iQSf↓C[←k9hAEkPA]↑AACs[K9hAQCLAEKK8AeKG∃SmKH8DYGe1LX~∀$∩@@@E)sa∀AC[←U]hAM=YY←o∃HAErVyGdxASLAQQJAC
G←k]PAECY¬]GJA%bAi↑λYGeY_X~∀∩$@@@@	S]Ge∃CgJA	rAiQ%fAC[=k]h\↓∃kgh↓isaJyGd|↓i↑AY∃CmJAQQJAC
G←k]PDYGe1LX~∀$∩@@@Ek]G!C]OK⊂\A!K=aYJA9←hA←8AiQJ↓[CSY%]NAY%ghAQ¬mJAQ¬gPAG=IJ@Fdrrrr8DYGe1LRv~(∩∪O↑↓iVAaI←[ahl~∀α∪∃]Hv~(∪SLA	eGQCHzDZD↓iQK\4∀∩∪E∃OS\A→SqI?→SqHW¬[hvA	CYC]
K7a;⎇ECYC9GK7at[C[hl~∀α∪∃]H~∀%KYgJ↓SLAEIGQCdt@VDAQQK\~(∩∪EK≥S\AMαKc∩␈6Kc⊃7∞kQmβ⊗3π≠≤*gBv}∪π3πv≠⊗oBj[π7QXh($'.s⊂4(N+3O∀L∪↔∨'rβ3π.aβ;?&amβN1βK≡CπHm∩q	βSF+84(HH'↔>K9βC⊗K;Q!∀K;∂?↔∪↔∂Qε3?K5bβSKeε∨π'rq	3∂⊗c→%lhP$$'>yβS=πβK?7π!l4(HH'↔;#X4($NK⊃β//JoBun≠[πO~A	eeKIe	%¬##↔8hP$$'⊗+∨'9εK→βgw∪↔OAB∩∂π3N3?K;L	βK↔≡K∪↔;#y	$m
βS#↔pβ∨=β&yβ;∨&al4PH$'↔v 4($N+3O∃εK→β//JoBuf≠[πO~A	eAβ↓A	%ε{Iβ//JoBtn≠[πO~A	eY;↓A	%π##↔8hP$$'>yβS=εs?SπCX4($N≠?77,sQα←*β7WO"βCπeπ#πaβ}qα∂πfK≠?KvK¬βK/≠'∪↔w#M1β&C∃βS∂Aβ←π_h($$LK;∂3.#↔⊃βNqβS#*βCWK≡CπO∃πβK'∂+X4($N≠π3K.≠∩␈∂∞cK↔∂"[π7QXh+;?&ah$N∪π3πv≠⊗oBm{π3∞s∂⊗o¬i7π7#YβK↔≡"␈K↔≡!/π7#X4($N+;⊃lhP'↔;#X4+↔v!l4(3∂?nk↔;Q¬βK?∂,#WK↔~β≠ ?$
V∞↑≥lrεF≤,Vg≠$
F∞∩L]VO&L≤"f.lMF∞∪1Q hV≥nF.>↑$εg'≡Rα~ε∧ε6␈$λ∃4-+∀εf∞,]G
bε∀ε6␈$λ4D
9	∃∀+1Q&NwL\v/∩
H7"α4
V}"ε4ε≡␈]nF/∩iwα∧9λU≤D~(Rεf≤,Vbε}↑Gπ∂G1PW∨N-⊗v:≡',>(⊂MMY6d'&7(λdλr⊃4i	4Q(
L8Y;∧]9QL↑Lc"AQ\⎇≤M≥Yh≤∞-xy1∞↑Y(≠≤J~;NL9y4D∞≥fdY{{\;H≠∞n;\_,=y9βnY9*'1"XY,]9H_m⎇;90↔≥⊂6puYyP0@
Vv4w→P60q→v⊗⊂ 7 characterpεAoS⊃JXAM=dACI⊃eKgg∃JACH4∀∪gKISCXA9k[EKHA`XA∃SiQKHAYKCYS]NAQQJAe∃gkYh↓S\AYαs⊗mFjβS#K*β3+⊗[*t4(JC'→βg3W;C∞≠/↔⊃εKEβS↔+∃%β⎇⊃β∪↔d¬↔6/-≥f:ε≡Dε∂~∀π∨'-≥f:pQ!∀N2j&.+↑N'.*D∞FF*∞⎇w⊗"∧%∧5∀XU∩∩ε≡4εNw<Z'&.D	vrπMRπ≡\8mlλ≠∩-l#"B.⎇→;@≡≤≤[n∞Z8=Wc"P⊃[vvr`.t liNes are padded To fuLl width;
unpaci(p) ! puTpεAiQ∀ACIIIKgfA%]i↑AQQJACIeCrA1≥αv~)MP∨I∧J⎇Eβ∨#↔A↓λβW;SLaβ;1∧#<4(N∪↔∨'rβ@∨'KyFv-=≠U[
∞MrrV+R6⊗β_;M≡hλh∞9λ≠n↑λ→8,=λ≠∩-l(≥≠d];⊂⊗λ;tr:~≥FE∧[52mtWoyz:⊗XP:7H;R[.I∧E∧T~s⊂4↑LP:42[⊂⊃⊃Q	1{9j≤∀5rlVx.TP_wvvr[:⊂8:]⊂4w~0yt_wr2]CE∧rv≤pP4cλ392rH0s2~↑Y⊂0[2⊂67→mX ≥≠ C" then "(FREE)"¬
	else stt[w-5 to w])&crlf;
	end;
for i←nl+! step 1 until 5 do lne[i]←
↓if lvunpacked then blanks[1 to W]&crlf el@MJAGe1Lv~∃%HAYmU]aCG-KHAi!K\Ae∃ice\ DDR~)KYgJ↓eKikβ∪9#3v*mFu6c;⊗m∃i≠3;-YNu≠d¬f-[KPffV[6Uj6>-F2Kat a qixth blank line was returned;
end;

procEdure emitlab(integer p,free) # outputs One lAbel;
λcasE ltype of
	beGin   out(lchanlab(p,34,False,dree)) # AVARY labeL9
		begin # CHESHIRE label;
		    lab(p,31true,free);
		    for i←1 step 1 Until 5 do
			case lct of
				begin 
				blne[i]←lne[i][1 to 31] # lct=0;
				blne[i]←blne[i]&"  "&lne[i][1 to 31] # lct=1;
				blne[i]←blne[i]&"   "&lne[i][1 to 31] ! lct=2;
				out(lchan,blne[i]&"   "&l@9K7S;lbAi↑fc:L4∀∩∩∩$∩PNbTLD&D$R@FA1Ghzfl~∀α∩$∪KMHl~∀α∩@@AS_@QYGQ>QYGPVbS[=H@hRt`AiQ∃\A←kPQQGQ¬\XNbTLD&D$r~∀∩%K]Hv4∀∪K]⊂v~∀~)ae←G∃IceJ↓K]IY¬Dv~∃	KOS\↓G←[[∃]hA←UiakiLAiQJ↓YCgh↓YCEK1bXAS_ACMrl~∃CL↓Yasa∀@z@B↓C]HA1Gh6`↓iQK\αβ?WQFc∂#πpc3;-YFu→B9E@*d"2αJl-Fv-6+R2Bv⊗R2⊃4!∩0h!≤&f@Y2dkTJ	d&THDhE∀X[≠L[m↔!E∧l-)DαhJ)L-≠Y6f[)J	f⊗αS⊃	H∀T]FB1v7yYT61t_w∀]FB894w≥∀⊃*4→P6pt[4w3@ labelpεAQCYJAEK∃\Aoe%iaK\αβ?;Szβ∪'3*α2ε
,bM*Rm↓94U#=βC⊗K;Qβ&C↔51π≠↔∃βNsOSK,≠S'?w→β'9¬##∃β/≠↔Iβn;WπcYβ∃π≠WK∃∧εFzεLYF/&QQ'&F≡4ε -9→(≤β:2i≥py29K⊃⊗1i≠3∀]FB2s2;
comment The MAIHλAaβ∪?∂↔'+C∃β∞s⊃β'αN2π∨\.π-βqr`$ures abst1S]m↑1S]lYβ≠SπSαXeNxx;M}Y→0→≤β;

λ¬ae←α≠↔'↑,Rε@8:0⊗∞β
αbedπS@9∧∧6}nβ90↔≥⊂:0uYyP1`!pe o@_ACEGβ#@⊗∞>@λ≥Yλ⊂∀[8ε`∨Sα≠∃β7∞K3'l}3Hh,8m]9;]∧
~→(@4πll@=oS@;8∧ε∂↔,∨↔4_8Y$8ε6 /cateD h∂]YβIβO'&C'9αl
&!lhS';S,;↔Iβ∂∪@⊗∂∀λl]Y∀m}\XmL≥0q`)ze] # rec@=`⊃β|∧bε←,LW.h≥~≡λ_p⊂[⊂0w2λ1pwβ]⊂12P→αidl@∃Hv~∃αK;@&\|W$_8\L∨(≠<mmX∃~,¬ # the Bit c@=`K↔≤εε}vM→f 4≥≠h∀≤Y4
}]λ
≤β⊂:4_z⊂92\7y2εB∧pp 0ears on the cuRp¬K]h↓[←]i OfAY%ch@QMK]HA¬]HAg=`Ke∧εW≡(≥~↑y(⊂M≡λ_p↔Y2yT]CE9z9~w3P \αray qtabname,@IKai]¬[C -βQQJ@T∧2εNLXNM9Z0∩\β a @IKa←EPp4L¬g&.|XD<X	0↑P9z7XuPf@%YP∪↔ ¬G.vi0πεW ⊂λβ on↓QC@; ¬Bπ⊗↑≡V/∨N4ε&NMH	,Eλ≤Y.≡9<p~≤β unfilleD9
iNtege@HACe@⊗eβK-βS∂?≥"`≠β&@KTλh⊂_≤αice o`Ae∃aWe@ ∧εNr∞λVv@X∧r`39
αi@9iKOKβ⊃β'\∨αα~
\↔FNβ=;$∞Y<⊂↔\αpλA]U[EKdβX4+∂|¬Vn8π: The @¬`KπLε2ε∂,Tε&Nβ90↔≤βi`∨]∃HA@Hβ⊃≥β,∧6∂/<Tπ&F↑,RεO4∩β:↑	F∞≡Tλv∂α
→bπεThPα;]-\Y<Z-lh≤v.>→; ⊗λ12z;Ypp∞ dicits a`≥Hαβ3↔SαLW.iHλλ≤⎇→0-M≤∧V⊂≠w2<PXε reports can
λ	be ha`≥I1K@ASαqβ¬β≤¬⊗v>LTεn∞≥H
-lkH⊗h≤⎇≥0⊂[68	, it'c only 34$ @	KGCKβ≠∃↓@hP''Op;QβW≤∧V"εmxD
];8L↑X;YkWc"P⊃[vvr`.t The 7-place gap caused↓BAgGIKok`↓←\@nβI5]≥≠	1β.≠πWO*β'Qβ≥;'S∂F+EβSF(4('}#⊃?↔6+9βC∂∪'Se∧∧f␈∩
↔⊗&=x∂∃{:8n-yZ0m+Hλ
M→(⊃IzH≠⊂↔[x9P4_{2P:≠P12FB∧qt0[3rr acain to Rectify the bug≠
¬
   recursive proceduRe abst(integer p) # emits mailing labels in symmetric
	   order (i.e., in order by hashcode) for tree rooted at p;
   if p≠0 then begin
       abst(llink[p]);
       j←lines[p];
       if j="C" or j="F" then eMitlab(p,true);
       abst(rlink[p]);
   end;

   integer procedure status;
   begin comment prints a status report for the user, and returns 0,1,2 according as
       the verdict is to start over, go ahead with shifting, go ahead without shifting;
   print("I have read through all the orders, and here is how things stand:",crlf,
     "(hardcopy)      To be   Unfillable      (microfiche)    To be   Unfillable",crlf,
     "Cost  On hand   sent    requests              On hand   sent    requests",crlf);
   for i←1 step 2 until imax do begin
       print(starname[i]);
       j←cvc(i)-"1"; 
       print("$",cvf(reptcoSt[j]/100),tab,stock[j],tab,fiLled[j](	iCλYk]MmU:Yi¬DRv~(@@@@@AU?
mFQR,bRZDD@v@~(@@@@@Aae%]hQi¬DYiCλYgi←
P∞o*jcSπ	f3'33."o*Ug#π	3.s~o*jc∂K32Il4)α↓β↔;#X4)↓αβCK'w!!
Cf+πO∃ε≠#↔∂ZβS#'~β∂πK.3W33Jqα'→π##↔K*β#πMε∪↔↔9π≠?7∃ε+CK?∩a	3∂⊗c→04R↓↓↓↓α∪SgC*↓s∂IrβS-β/C'Qmε∪WQβL1β'Q?→βπ3bβK'∨G!βS=ε;=βπF+π"≥f"π∞-⊗w"∞Mε*ε≥nf}N<Z2b∩L>&f2AQ"αα∧∧α↔π≡λR¬KL>#rε≥lB∧J∞⎇⊗f@λ≤≤L↑_<Y$∞~→;'$λJ.d∞≥~;G1"Hλ∧
9H∃∂≡→:3Dπ(λV$$≥~→-d_Y9m≥C"H∧∧λλλ∧
W|Y.≡λλSi5λ∩(∞⎇9≠λ,9z;D∞≠h≥m}Xh∪md≥~→$
;][m≤y<kD$X|[dβ⊃"7H<wp∃ want the"&
↓      " activity codes to Be shidped? (Y Op N) ",acthedp,yasnoopts);
       retu@I\QTRl~∀@@↓K]HA∃YgJA	KOS\4⊂@@@@@AaIS]hPα∩>-⊃∧Iβ←'faβ;∨ βCK'w!βS#⎇≠∃β'w3?'∂-→1βCd+πO∃¬#@↔J≤v∞NβK@EL|[⊃E↔c"H∧∧λλλ∧∞Y=≥.
J
'FE⊂⊂λ⊂⊂⊂⊂→w2≥FB⊂⊂⊂"[2≥FEβE⊂⊂⊂≤97qbY8y2P≤qpw7\22y9NFE⊂⊂λ12st[⊂⊃9qXw3y2→y9Q_wvvr[:⊂92Xp∧ through all ordeRpεXAC9HAgKPAc`AQQJAAβ≠↔;⊃8↓→ββ≤{@↔↔∀pε∂↔,∨↔XQ$ααε<[∃K¬[vβXh$∧απ∨LKvNw∞↑BFN=⊗rf,hff2↔1PBα∧	⊗ $→<=%∞⎇≥⊗f∀≥≠hε⊗↔+λH→pεfbSαT ⊗ ") then¬
	   bedπS@9¬;#'3*βK∂F@o'61β∪=π≠SR␈NsCWQFK∂#πpc≠→J↓
βO↑KAβ∪O∪↔∂S⎇∪eβC∞;∃l4PI↓↓β≥#Ro'wβWQ#L∧6F∞eL&66Le∪Xh!∀ααε]lCXh$∧αε6} λ
≠l(⊂→]2x⊂_H8p∞til ac@%uJAI<AgK]⊃0∂&@[vβXh$∧απ>
→F*πN.V*εMqPRα∧∧ααα,V =8π⊂&_q2v⊂≠2|:6~w2U@~w:2sYy⊂9`%ndp,sorri@@v~∀@@@@@↓SDAKα{⊂∩πMVrεMyf+XQ$ααα∧∧αεNd
7'βT 2$≥~→-d_Y9m≥A"B$∧λ≤↔l>Y
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8π3 /p¬P↔π&K?9βL{Uβ+αZ7"ε|≡f*α$aP@H⊃∀ααα∧∧αε6} λ∞M~8h∞<≠p→≥⊃∪1`2lf&"ipεAG←β∪@⊗.>@λ≥Yλ⊂⊃[vx6 %te0≡DαHmEβ&C↔8Q!⊂HJ∧∧αε⊗\⎇⊗rπ∞-⊗wα∧*FF.βH∪↑	|h∞N↑(⊂⊂Yppwπλ⊗1y6→∀X
		∩@@AO↑↓iP≥β⊗+GSπ↔!l4(HH%↓↓αβ↔;⊂hP$%↓α↓β↔3≤∧Rαα∧&.>≥`εo≡;=%m{∀λ∞t⊂λi-1); Mqk[k]←1 l@MPARv4⊂∩α∩@@AS5Cq?Rl~∀$HI↓↓↓∧+;⊃lhP$%↓α↓β↔≠ π0hPα(λ∧∧≤≤Z-nλλSi5λ≠[nt⊂∧SvH47wuZw3P ]⊂:42H5y22\9S↔πλ⊗1y6→∀X
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		    begin returj3i@9mVQiI←←hYQa`↔∃K[';[zCSK?|εBf6≥J6*Kαc"A⊃(λλ∧{{;,]]λ⊂↔≠z2P*~0z⊂ &or e@¬GPA[¬SYS]≤XAoJ↓iP∨W⊂βS#∃∧+;S'⊗)βCK,∧RbπMqPPH⊃≡6FNn@λ∞M→(⊂,>~=Z.O(_p↔Y2P3 /p∧AKC
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λ	∩E
←]iC%\AgQ=`@&↑ λ∞2qw`2ds oF ∧YGe1HXEI!JA←E⊃KefAβ∪↔GW,ε7&.Dλλ-lλλ@⊗βE		"the @%]eOSα≠↔Mβ∞≠S@.≥H∂∀≤y0↔≥⊂⊂3 /p∧Ac←U`AaKβ∪7πlXNDK_tMLKβ"A⊃(XY,=|Y≤e∃H⊂
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end;
endh	CDβX4+\≥⊗f.KzG.9*c!,;Y≥CEβ1wvvYw:⊂*~2P0 3end' procEdqre, forisolated orders;

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