Correct: 9+0, 8+1, 7+2, 6+3, 5+4, 3+6, 2+7, 1+8, 0+9, Incorrect: 8+0, 7+1, 6+2, 5+3, 7+0, 5+1, 2+5, 3+4, 4+3, 5+2, 1+6, 6+1, 2+3, 3+2, 3+3, 4+4, 0+6, 2+2, 1+7,

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