#include<bits/stdc++.h> using namespace std; using ll = long long; int main() { ll n, m, r, x, y, i, j, ans, t, s; cin >> n; s = 1; for (i = 1; i <= n; i ++) { for (j = 1; j <= n; j ++) { cout << s << " "; s ++; } cout << "\n"; } }