#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  vector<vector<int>> a(N, vector<int>(N));
  for (int i = 0; i < N; i++){
    a[i][0] = i * 2 % N + 1;
    for (int j = 1; j < N; j++){
      if (a[i][j - 1] == 1){
        a[i][j] = N;
      } else {
        a[i][j] = a[i][j - 1] - 1;
      }
    }
  }
  for (int i = 0; i < N; i++){
    for (int j = 0; j < N; j++){
      cout << a[i][j];
      if (j < N - 1){
        cout << ' ';
      }
    }
    cout << endl;
  }
}