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=2
=1 .
( ) =1,5 .
( ) = 0,5 .
( ) = 1 . .
= 1/4 . .
= 2
=3 . .
() = 250
= 30
(10%) =40
=50
( )
() =0,5 . .
=30
( ( )) =500
=1
=2 .
=2 . .
= 1 . .
( )
( ( )
=30
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