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1 1 1 2 1 1 2 1 1 1 1 1 2 2 1 1st row contains 1 "1". The next row describes the previous row. 2nd row "1 1" says : previous row contains 1 "1" = 1 1 3rd row "2 1" says: 2nd row contains 2 "1"s = 2 1 4th row "1 2 1 1" says: 3rd row contains one "2" and one "1" = 1 2 1 1 5th row says 1 "1", 1 "2" and 2 "1"s = 1 1 1 2 2 1 6th row will say: 3 1 2 2 1 1 |
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