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