(1)
( 20 ): 1 . 0.5 . 1 .. 1.. 1 (11 ) 3 . 1. 2. ,,. 3. ( ) . , , 2 .. 15 30-40. . 4. , ( 20-30 ) 5. , , . 6. 15-20 200
"": 1 - " " 2 - " " 3 - ( )... 8 - 20 9 - 10 - ...