3 20 . ; 1, 4, 2. 6(),2.4.1. 7 17 27 37 47 57 67 77 87 93- 47 , 13 =60 8-10 . 22, 16 .(2.2,4.(),4 (),2, 2. . 19 22+19+!6+19+22=98 16-18 12 . 43,11.2, 11, 2 5 . 2 .