#include <iostream>
#include <cmath>
#include "iomanip"
using namespace std ;

int main() {
    int n, x, count = 1;
    cin >> n;
    int a[n][n];
    for (int i = 0; i < n; i++)
        for (int j = 0; j < n; j++)
            a[i][j] = i * j;

    for (int i = 1; i < n; i++){
        for (int j = 1; j < n; j++)
            cout << setw(4) << a[i][j] << ' ';
        cout << endl;
    }
  return 0;
}
// 1 2 3 3 4 5 7 8 9 0
// 0 9 8 7 6 5 4 3 2 1