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