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