[0,2,1,3,12,13,14,15,4,5,16,17,6,7,18,19,8,9,23,
24,25,26,27,28,29,34,35,36,37,38,39,45,46,47,48,
49,56,57,58,59,67,68,69,78,79,89,120,10,20,21,30,
31,32,40,41,42,43,50,51,52,53,54,60,61,62,63,64,
65,70,71,72,73,74,75,76,80,81,82,83,84,85,86,87,
90,91]
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