[1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,3,4,4,4,
4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,6,7,8,7,8,7,8,7,
8,7,8,7,8,7,8,9,9,9,9,9,9,9,10,10,10,10,10,10,10,
11,11,11,11,11,11,11,12,12,12,12,12,12,12,13,13,
13,13,13,13,13,14,15,14,15,14,15,14,15,14,15,14,
15,14,15,16,16,16,16,16,16,16,17,17,17,17,17,17,
17,18]
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