[0,1,0,2,1,2,0,3,4,2,1,3,0,4,6,5,2,3,1,4,0,5,8,6, 7,3,2,4,1,5,0,6,10,7,9,8,3,4,2,5,1,6,0,7,12,8,11, 9,10,4,3,5,2,6,1,7,0,8,14,9,13,10,12,11,4,5,3,6,2, 7,1,8,0,9,16,10,15,11,14,12,13,5,4,6,3,7,2,8,1,9, 0,10,18,11,17,12,16,13,15,14]