#include <fstream>
using namespace std;

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

int a[17], n, m;
bool ok[17];

void gen(int k)
{
    if (k == m+1)
    {
        for (int i = 1; i<=m; i++)
            fout << a[i] << ' ';
        fout << '\n';
    }
    else
    {
        for (int i = a[k-1]+1; i<=n; i++)
            if (ok[i] == 0)
            {
                ok[i] = 1;
                p[k] = i;
                gen(k+1);
                ok[i] = 0;
            }
    }
}

int main()
{
    fin >> n;
    for (m = 1; m<=n; m++)
        gen(1);
    return 0;
}