[1,0,1,2,3,2,3,4,5,4,3,4,5,4,5,6,7,6,7,8,9,8,7,8, 9,8,7,8,9,8,9,10,11,10,11,12,13,12,13,14,15,14,13, 14,15,14,13,14,15,14,15,16,17,16,15,16,17,16,15, 16,17,16,17,18,19,18,19,20,21,20,21,22,23,22,21, 22,23,22,23]