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