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