. #_ # # .. . ( - ) "..... , .. 280 . . , . . 1. 140 , 12 . 2. . 3. , 30 (. . - ) =110 4. 14 . 5. . 6. , 30 = 80 . 7. 12 8. = 160 ( ), , 60 ( ) = 100 : : 40 , 60 (),80 , 60 , 40 = 160 . , . . , ....." #_ #