n = 10;
m = 10;
a = [|0,1,1,0,1,0,0,0,0,0|0,1,1,0,1,0,1,1,0,1|1,1,0,1,1,0,0,1,1,1|1,0,0,0,1,1,1,0,1,0|1,1,1,1,0,0,0,0,0,1|1,0,0,0,1,1,1,1,0,1|0,0,0,0,1,1,0,1,1,1|1,1,0,1,1,0,1,0,1,0|1,1,0,0,1,1,1,0,1,1|0,1,0,0,1,0,1,0,0,1|];