[1,1,2,0,0,1,2,2,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, 2,2,3,0,0,2,3,3,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]