9 - 3 = 6, 10 - 3 = 7, 9 - 3 = 6, 8 - 3 = 5, 10 - 6 = 4, 10 - 7 = 3, 7 - 7 = 0, 7 - 6 = 1, 10 - 9 = 1, 9 - 9 = 0

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