/in/foo.cc: In function 'int main()':
/in/foo.cc:6:18: error: 'scanf' was not declared in this scope
     scanf("%d",&n);
                  ^
/in/foo.cc:7:9: error: 'i' was not declared in this scope
     For(i,1,n)  For(j,1,n)  Mi[i][j]=1e9,Ma[i][j]=-1e9;
         ^
/in/foo.cc:7:14: error: 'For' was not declared in this scope
     For(i,1,n)  For(j,1,n)  Mi[i][j]=1e9,Ma[i][j]=-1e9;
              ^
/in/foo.cc:11:14: error: 'Dow' was not declared in this scope
     Dow(i,1,n)
              ^
/in/foo.cc:24:25: error: 'printf' was not declared in this scope
     printf("%d",Ma[1][n]);
                         ^