#include <bits/stdc++.h>

#define NMax 20

using namespace std;

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

int N;
int x[NMax];

void Back(int k)
{
    if(k>N)
    {
        for(int i=1;i<=N;i++)
            if(x[i])
                fout<<i<<" ";
        fout<<"\n";
    }
    else
    {
        x[k]=1; Back(k+1);
        x[k]=0; Back(k+1);
    }
}

int main()
{
    fin>>N;
    Back(1);

    return 0;
}