#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <queue>
#include <map>
#include <cmath>
#include <iomanip>
#include <set>
#include <cstdio>
#include <string>

using namespace std;

int main() {
  int n;
  cin >> n;
  for (int i = 0; i < n; i++) {
    for (int j = 1; j <= n; j++) {
      int now = (j + i) % n;
      if (now == 0) {
        now = n;
      }
      cout << now;
      if (j == n) {
        cout << endl;
      } else {
        cout << " ";
      }
    }
  }
  return 0; 
}