[1,3,2,4,5,8,6,7,9,12,13,10,11,16,14,17,18,15,20, 24,19,25,21,22,23,31,26,34,27,33,28,37,29,38,36, 30,39,32,35,46,44,47,40,48,41,42,43,49,50,53,45, 58,51,59,61,52,67,54,68,55,69,56,70,57,60,73,62, 63,64,65,66,80]