[0,0,1,2,3,3,4,5,6,6,7,8,9,9,10,11,12,12,13,14,15,
16,16,17,18,19,19,20,21,22,22,23,24,25,25,26,27,
28,29,29,30,31,32,32,33,34,35,35,36,37,38,38,39,
40,41,42,42,43,44,45,45,46,47,48,48,49,50,51,51,
52,53,54,55,55,56,57,58,58,59,60,61,61,62,63,64,
64,65,66,67,67,68,69,70,71,71,72,73,74,74,75,76,
77,77,78,79,80,80,81,82,83,84,84,85,86,87,87,88,
89,90,90,91]
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