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