1 + 5 =, 7, 6, 3 - 2 =, 1, 4, 10 - 5 =, 4, 5, 12 - 5 =, 7, 5, 10 - 8 =, 2, 3, 13 - 9 =, 6, 4, 9 - 3 =, 6, 4, 2 + 1 =, 0, 3, 2 + 0 =, 2, 0, 1 - 1 =, 2, 0, 11 - 9 =, 2, 20, 12 - 4 =, 8, 3, 13 - 0 =, 13, 0, 4 + 1 =, 5, 6, 8 - 1 =, 9, 7, 5 - 3 =, 2, 4, 5 - 0 =, 6, 5, 20 - 10 =, 10, 0, 30 + 10 =, 40, 20, 9 - 8 =, 10, 1

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