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