15 !
, !
:
- – 300 .
– 30 .
– 2 ..
– 100 .
– 1 ..
– 2 ..
–
– 2
« » -
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2. 1 . . , .
3. 1/2 2 . . . ( 30).
4. .
5. , . .
6. .
7. 1 . , .
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.
, 2 2-3 .
, .
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