Correct: 1+1=2, 2+2=4, 3+3=6, 4+3=7, 4+4=8, 5+4=9, 5+5=10, 2+1=3, 3+2=5, 3+4=7, 4+5=9, Incorrect: 1+1=6, 1+2=4, 2+2=0, 2+3=2, 3+3=8, 4+3=2, 4+4=10, 5+4=6, 5+5=11,

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