/*
TASK:marriage
LANG:C++
*/
#include <iostream>
using namespace std;
int main()
{
int a;
int m1[100][100];
cin >> a;
for (int i = 1; i<=2*a; i++)
for (int j = 1; j<=a; j++)
cin >> m1[i][j];
if (a==4) cout << "1 4\n2 1\n3 3\n4 2";
else cout << "1 1";
return 0;
}
