[0,1,2,2,3,4,3,4,5,6,5,5,6,7,8,9,10,9,8,8,9,10,11,
12,13,14,15,16,15,14,13,13,13,14,15,16,17,18,19,
20,21,22,23,24,25,26,25,24,23,22,21,21,21,21,22,
23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,
39,40,41,42,41,40,39,38,37,36,35,34,34,34,34,34,
34,35,36,37]
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