7,7,7,7,7,6,5,4,3,2,1,0,0,1,0,0,1,0,1,0,1,1,2,3,0,0,3,3,4,0,7,0,7,6,5,4,3,1,1,0,1,2,4,7,0,7,6,5,4,2,2