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

ifstream fin("submultimi.in");
ofstream fout("submultimi.out");

int n;
vector<int> stiva;

void backtracking(int nr)
{
    if (nr == n + 1)
    {
        for (int i = 0; i < stiva.size(); i++)
            fout << stiva[i] << " ";
        fout << "\n";
        return;
    }
    stiva.push_back(nr);
    backtracking(nr + 1);
    stiva.pop_back();
    backtracking(nr + 1);
}

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