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