#include <bits/stdc++.h>
using namespace std;

int main() {
  int N;
  cin >> N;
  vector V(N, 0);
  for (int i = 0; i < N; i++) V.at(i) = i + 1;
  for (int i = 0; i < N; i++) {
    for (int j = 0; j < N; j++) cout << V.at(j) << ((j == N - 1) ? "\n" : " ");
    rotate(V.begin(), V.begin() + 1, V.end());
  }
}