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

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

int sol[17];

void bkt(int p, int n)
{
    for (int i=1; i<=p; i++)
    {
        fout<<sol[i]<<" ";
    }
    if (p)
    {
        fout<<"\n";
    }
    for (int i=sol[p]+1; i<=n; i++)
    {
        sol[++p] = i;
        bkt(p, n);
        sol[p] = 0;
        p--;
    }
}

int main()
{
    int n;
    fin>>n;
    bkt(0, n);
    fin.close();
    fout.close();
}