#include<iostream.h>
void main()
{int n,i,j,max,gasit=0;
 long p;
 int a[10][10];
 cin>>n;
 for(i=1;i<=n;i++)
  for(j=1;j<=n;j++) cin>>a[i][j];
 for(j=1;j<=n;j++)
  { p=1;
   max=0;
   for(i=1;i<=n;i++) {p=p*a[i][j];
		      if(a[i][j]>max) max=a[i][j];
		     }
  if (p/max==max)
   {  cout<<max<<" ";
	  gasit=1;
   }
 }
 if(!gasit) cout<<"nu exista";
}