#include <fstream>

using namespace std;

int st[30], n, cnt;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");

void Afisare()
{
    int i;
    if (cnt == 0) return ;
    for (i = 1; i <= n; i++)
        if (st[i] == 1) fout << i << " ";
    fout << "\n";
}

void Back(int top)
{
    if (top == n + 1) { Afisare(); cnt++;}
    else for (int i = 0; i <= 1; i++)
    {
        st[top] = i;
        Back(top + 1);
    }
}

int main()
{
    fin >> n;
    Back(1);
    fout.close();
    return 0;
}