[0,1,2,3,4,5,6,7,8,9,12,13,14,15,16,17,18,19,10, 11,22,23,24,25,26,27,28,20,21,29,32,33,34,35,36, 37,38,39,30,31,42,43,44,45,46,47,48,40,41,49,52, 53,54,55,56,57,58,59,50,51,62,63,64,65,66,67,68, 60,61,69,72,73,74]