#include <bits/stdc++.h>
using namespace std;

ifstream fin("submultimi.in");
ofstream fout ("submultimi.out");
int a[20], n;
int main()
{
    int i;
    fin >> n;
    a[n]=1;
    while(a[0]==0)
    {
        for(i=1; i<=n; i++)
            if(a[i]==1) fout << i << " ";
            fout << "\n";
        for(i=n; a[i]==1; i--)
            a[i]=0;
        a[i]=1;
    }
    return 0;
}