C?= 76-88 5 5 5 2 1 3 4 2 2 1 4 3 2 3 4 2 2 3 t !t "t t t t > !t t t t t #t t?t t t !t t t !t t t t t ? t t 1 5 1 1 5 2 ? t !t t !t ? d t d #t !t t !t d t d t d t d
20 12 5 2 t t t 4 t t t t t t 1 4 t t t 3 t t t t d 10 4 3 cresct#t. t t
1 1 1 1 4 5 1 t t t t !t !t t t t t !t t t t #t t t t t t t t 3 2
1 t ? t ? c d c d t t t t t t t t t t t t t t t 12 2 3 1 2 1 4 3 1 1 2 > t t t t t t t t t t t t #t !t t #t t t !t t !t t t !t t t !t