1 x 9 + 2 = 11
12 x 9 + 3 = 11 1
123 x 9 + 4 = 11 11
1234 x 9 + 5 = 11 11 1
12345 x 9 + 6 = 11 11 11
123456 x 9 + 7 = 11 11 11 1
1234567 x 9 + 8 = 11 11 11 11
12345678 x 9 + 9 = 11 11 11 11 1
123456789 x 9 + 10 = 11 11 11 11 11
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