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: 120 : 8 : ●300 . ; ●140 . ; ●140 . ;
, ? ! 23 "" .
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: : 3 2.5 .. 1/2 .. ?
(400+45) = 545
(200+200) = 400
(200+450) = 650
(1+2) = 3
(1+1) = 2
(150+50) = 200
= 80
= 1/2 . .
= 1 . .
= 100
= 50
= 600