#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define all(x) (x).begin(),(x).end()

using std::cin;
using std::cout;
using std::set;
using std::vector;

int main() {
    int n;
    cin >> n;
    
    vector<int> p(n);
    iota(all(p), 1);
    
    rep(i, n) {
        rep(j, n) cout << p[j] << ' ';
        puts("");
    }
    
    return 0;
}