1 x 1 = - 1, 2 x 2 = - 4, 9 - 3 x 3 =, 16 - 4 x 4 =, 25 - 5 x 5 =, 6 x 6 = - 36, 49 - 7 x 7 =, 8 x 8 = - 64, 81 - 9 x 9 =, 100 - 10 x 10,

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