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

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

int n;
bool valid[20];
int valori[20];


void backtracking(int pasi, int poz)
{
    if(poz > 1)
    {
        for (int i = 1; i < poz; ++i)
            fout << valori[i] << " ";
        fout << "\n";
    }
    for (int i = pasi; i <= n; ++i)
    {
        if(!valid[i])
        {
            valid[i] = true;
            valori[poz] = i;
            backtracking(i + 1, poz + 1);
            valid[i] = false;
        }
    }
}

int main()
{
    fin >> n;
    backtracking(1,1);
}