(): : (167 50 ) 3720 : 100
(): (40 ) 3,5, (40 ) 3 : 23 32 1010
!
. 1 — 1 () 12 , 22 6 . . . , 1 ( ) 21 . .
120 3 . 2 , : *2 , 1 *, * * (= ), 2 . No3,5 1 = 10 . ! , 1, 60 . 1 2 , , 2 = 15 . , , . . 22 .