15 - 10 + 5 =, 4 - 9 - 5 =, 12 - 7 + 5 = , 3 - 8 - 5 = , 14 - 10 + 4 = , 11 - 5 + 6 = , 6 - 12 - 6 =, 8 - 14 - 6 = , 9 - 6 + 3 , 15 - 11 + 4 = , 0 - 100 - 100 =, 5 - 8 - 3 = , 13 - 4 + 9 = , 12 - 6 + 6 = , 16 - 8 + 8 =, 14 - 7 + 7 =, 10 - 5 + 5 =, 2 - 13 - 11 = , 1 - 10 - 9 = , 19 - 6 + 3 =,

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