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