#include <iostream>
#include <fstream>
using namespace std;

ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
const int MAX_SIZE = 25;
int n, subm[MAX_SIZE];

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

int main() {
    fin >> n;
    generate(1, 0);
    return 0;
}