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

ifstream f("submultimi.in");
ofstream g("submultimi.out");

int n;
vector<int>v;

inline void subset(int k)
{
    if(k == n+1)
    {
        for(auto x : v)
            g << x << ' ';
        g << '\n';
    }
    else
    {
        v.push_back(k);
        subset(k+1);
        v.pop_back();
        subset(k+1);
    }
}

int main()
{
    f >> n;
    subset(1);
}