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