#include <iostream>
#include <fstream>

using namespace std;

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

bool sol[20];

void printSol(int n) {
    int count = 0;
    for (int i = 0; i < n; i++) if (sol[i]) count++;

    if (count != 0) {
        for (int i = 0; i < n; i++) {
            if (sol[i]) g << i+1 << " ";
        }
        g << endl;
    }
}

void back(int n, int k) {
    if (k == n) {
        printSol(n);
        return;
    }
    sol[k] = false;
    back(n, k+1);

    sol[k] = true;
    back(n, k+1);
}

int main()
{
    int n;
    f >> n;

    back(n, 0);

    f.close();
    g.close();
    return 0;
}