#include <bits/stdc++.h>
using namespace std;
int n, out[11][11] = {
           {0},
           {0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
           {0, 2, 4, 6, 8, 10, 12, 14, 16, 18},
           {0, 3, 6, 9, 12, 15, 18, 21, 24, 27},
           {0, 4, 8, 12, 16, 20, 24, 28, 32, 36},
           {0, 5, 10, 15, 20, 25, 30, 35, 40, 45},
           {0, 6, 12, 18, 24, 30, 36, 42, 48, 54},
           {0, 7, 14, 21, 28, 35, 42, 49, 56, 63},
           {0, 8, 16, 24, 32, 40, 48, 56, 64, 72},
           {0, 9, 18, 27, 36, 45, 54, 63, 72, 81},
};
void Bs(int x) {
  if (x < n)
    cout << x << " ";
  else {
    cout << x / n;
    Bs(x % n);
  }
  return;
}
int main() {
  cin >> n;
  for (int i = 1; i < n; i++) {
    for (int j = 1; j < n; j++) Bs(out[i][j]);
    cout << "\n";
  }
}
