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