#include <bits/stdc++.h>
#define nmax 18
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
///Varianta nerecursiva
int a[nmax],n;
void Rezolvare()
{
    int i,k;
    fin>>n;
    k=n+1;
    a[1]=1;
    while(!a[k])
    {
        for(i=1;i<=n;i++)
            if(a[i])
              fout<<i<<" ";
        fout<<"\n";
        for(i=1;a[i]==1;i++)
             a[i]=0;
        a[i]=1;
    }
}
int main()
{
    Rezolvare();
    fin.close();
    fout.close();
    return 0;
}