Kolakoski variation using (1,2,3,4) starting with 1,2. 1, 2, 2, 3, 3, 4, 4, 4, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 1, 1, 1, 1, 2, 3, 4, 1, 1, 2, 2, 3, 3, 4, 4
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