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

int main()
{
    int N;
    cin >> N;
    for (int i = 1; i <= N; i++)
    {
        for (int j = i; j < i + N; j++)
        {
            cout << (j - 1) % N + 1 << " ";
        }
        cout << "\n";
    }
}