[0,1,1,1,2,2,2,3,3,4,4,4,5,5,5,5,5,6,7,7,7,8,8,9,
10,11,11,12,12,12,13,13,13,13,14,15,15,15,16,16,
16,17,18,18,18,18,18,18,18,19,19,19,20,21,22,23,
23,24,24,24,25,25,25,25,26,27,27,27,28,28,29,29,
29,30,31,32,33,34,34,34,34,35,36,37,37,37,37,37,
37,37,38]
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