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