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