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2 n 4 c

2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c
2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c
2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c2 n 4 c