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( ), , , .
40 , . .
.
( 1 — 10 ) 15 .
, .
600 .
4–5 .
5–7 6–7 .
200 .
7–8 .
( 200 ), 2 . 200 , 4–5 — .
( 7 ), .
, 90 °: 0,5 — 10 , 1 — 14 , .