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