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