168
1x 2x 3x )
.( .
.
.
31 : -3-
. :
15 20 . " . " 10 .
20 30 40.... 90 .
. ) ( . )
" 20 "
20 (
10
" " ) 15-20 (3 " "
3 . 2 3 . 3
.
.
32 :
" " . . 3
.
3 .
. . : .
.
33 :
2 - 20 30 . 1 20 2
3 . .
15
= 3 ) = (1
= 2 ) = (0
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