[4,5,6,7,0,1,2,3,12,13,14,15,8,9,10,11,20,21,22, 23,16,17,18,19,28,29,30,31,24,25,26,27,36,37,38, 39,32,33,34,35,44,45,46,47,40,41,42,43,52,53,54, 55,48,49,50,51,60,61]