#include <bits/stdc++.h>
#define len 17

using namespace std;

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

typedef unsigned short ushort;

ushort N;
bool sol[len];

void type()
{
    bool nevid = false;
    for(ushort i = 1; i <= N; ++i)
        if(sol[i])
        {
            out << i << ' ';
            nevid = true;
        }
    if(!nevid)
        return;
    out << '\n';
}

void back(ushort k)
{
    for(ushort i = 0; i <= 1; ++i)
    {
        sol[k] = i;
        k == N ? type() : back(k + 1);
    }
}

int main()
{
    in >> N;
    back(1);
    return 0;
}