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2 n 1 3 n 1

2 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 1
2 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 1
2 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 12 n 1 3 n 1