[4,1,5,2,3,11,6,7,8,15,9,10,12,13,16,14,17,18,19, 20,32,21,22,23,24,25,26,27,28,29,30,31,33,34,35, 50,36,37,38,39,40,41,42,43,52,44,45,46,47,48,49, 51,53,54,67,55,56,57,58,59,60,61,62,63,64,65,66, 68,69,70,71,72]