[0,0,0,2,0,3,0,4,0,0,4,6,0,6,7,0,7,8,0,8,0,6,8,9, 10,0,11,0,12,0,10,12,0,8,12,14,0,13,15,0,14,15,16, 0,15,16,0,16,17,18,0,19,0,20,0,0,12,16,18,20,21, 22,0,23,0,24,0,18,24,0,14,21,24,25,26]