[0,0,0,2,0,3,3,3,0,4,4,4,4,4,6,7,0,5,5,5,5,5,7,8,
5,5,8,9,8,9,11,11,0,6,6,6,6,6,8,9,6,6,9,10,9,10,
12,12,6,6,10,11,10,11,13,13,10,11,14,14,14,14,14,
17,0,7,7,7,7,7,9,10,7,7,10,11,10,11,13,13,7,7,11,
12,11,12,14,14,11,12,15,15,15,15,15,18,7,7,12,13,
12,13,15,15,12]
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