Ответ: Остап: 1, 3, 4, 5, 6, 7, 10, 12, 13, 15, 17, 19.Андрий: 2, 8, 9, 11, 14, 16, 18, 20.

Ответ: Остап: 1,4,5,6,7,10,12,13,15,18,19Андрий 2,3,5,8,9,11,16,17,20