#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
int v[20], n;
bitset <20> m;
void afis(int n)
{
    for(int i = 1 ; i <= n; i ++)
        out << v[i] <<" ";
    out << '\n';
}
void sub(int x)
{
    if(x != 1)
        afis(x - 1);
    if(x == n + 1)
        return ;
    for(int i = v[x - 1] + 1; i <= n; i++){
        if(m[i] == 0){
            v[x] = i, m[i] = 1;
            sub(x + 1);
            m[i] = 0;
        }
    }
}
int main()
{
    in >> n;
    sub(1);
    return 0;
}