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

int n, subm[25];

void gen(int element, int lgSubm) {
  if (element == n + 1) {
    for (int i = 0; i < lgSubm; ++i) {
      cout << subm[i] << ' ';
    }
    cout << "\n";
    return;
  }
  subm[lgSubm] = element;
  gen(element + 1, lgSubm + 1);
  gen(element + 1, lgSubm);
}

int main() {
	ifstream cin;
	cin.open("submultimi.in");
	ofstream cout;	
	cout.open("submultimi.out");
	cin >> n;
	gen(1, 0);
	cout.close();
	return 0;
}