IN 20 C4/D/C/D/C5/D/C/D; EX8; 1 +2/3 -4/5 +6/7 -8; 1 +2/3 -4/5 +6/7 -8; IN 4 20 C4/D/C/D/C5/D/C/D; EX8; 1 +2/3 -4/5 +6/7 -8; 1 2/3 4/5 6/7 8;