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