Question

востанови цепочку цифр 13-8-16-7-18-9-20-15-8-20

Answer 1

13,12,11,10,9,8 ; 16,15,14,13,12,11,10,9,8,7; 18,17,16,15,14,13,12,11,10,9; 20,19,18,17,16,15; 8,9,10,11,12,13,14,15,16,17,18,19,20.