#include <bits/stdc++.h>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
int v[20];
int c[20];
void f(int x, int n)
{
    if(x != 1)
    {
        for(int i = 1; i <= x - 1; i ++)
            out << v[i] <<" ";
        out << '\n';
    }
    if(x > n)
        return;
    for(int i = v[x - 1] + 1; i <= n; i++)
    {
        if(c[i] == 0)
        {
            v[x] = i;
            c[i] = 1;
            f(x + 1, n);
            c[i] = 0;
        }
    }
}
int main()
{
    int n;
    in >> n;
    f(1, n);
    return 0;
}