Correct: 1+9, 9+1, 2+8, 8+2, 3+7, 7+3, 4+6, 6+4, 5+5, 10+0, 0+10, Incorrect: 8+3, 3+6, 8+1, 9+2, 2+9, 1+8, 3+8, 6+3, 2+7, 7+2, 6+5,

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