[1,2,4,3,5,6,7,8,9,20,10,11,30,22,13,12,14,15,16, 24,17,23,18,25,19,21,26,28,27,29,31,32,40,33,41, 35,34,37,36,42,39,43,44,45,46,38,50,47,48,60,49, 52,53,62,63,64,54,55,56,57,58,66,59,67,70,65,68, 69,80,72,73,76,75,74,77,78]