[0,1,1,2,0,3,1,2,2,3,3,4,2,3,1,4,0,5,1,6,0,7,1,6,
2,5,1,4,2,5,3,4,4,5,5,6,4,7,5,6,6,7,7,8,6,7,5,8,4,
7,3,6,4,5,3,6,2,7,3,8,2,7,1,8,0,9,1,10,0,11,1,10,
2,11,3,12,2,11,1,12,0,13,1,14,0,15,1,14,2,13,1,12,
2,13,3,12,4,11,3,10,4,9,3,10,2,9,1,8,2,9,3,8,4,9,
5,10,4,11,5,10]
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