[0,1,2,1,4,5,2,7,8,3,10,11,4,13,14,5,16,17,6,19, 20,7,22,23,8,25,26,9,28,29,10,31,32,11,34,35,12, 37,38,13,40,41,14,43,44,15,46,47,16,49,50,17,52, 53,18,55,56,19,58,59,20,61,62,21,64,65,22,67]