, , , . , .
= 1
= 2
= 150
() = 1
(1-2) = 1
(, , .) = 3 . .
= 30
= 3 . .
:
( ) , (, , )
()
,
- ( )
, , … !
( )
! ( ) , , 30-40, .
.
( 1, , 3-5.) , 6-10, .
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