Correto: 2 X 3, 3 X 4 , 4 x 5 , 2 x 8 , 3 x 7 , 4 x 8, Incorreto: 2 X 9 , 3 X 3, 4 x 1 , 2 x 10 , 3 x 5, 4 x 4,

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