[0,1,0,2,1,3,0,2,4,1,3,0,5,2,4,1,6,3,0,5,2,7,4,1, 6,3,0,8,5,2,7,4,1,9,6,3,0,8,5,2,10,7,4,1,9,6,3,0, 11,8,5,2,10,7,4,1,12,9,6,3,0,11,8,5,2,13,10,7,4,1, 12,9,6,3,0,14,11,8,5,2,13,10,7,4,1,15,12,9,6,3,0, 14,11,8,5,2,16]