#include <fstream>

using namespace std;
int a[20], n;
int main()
{
    ifstream fin ("submultimi.in");
    ofstream fout ("submultimi.out");
    int i, k;
    fin >> n;
    a[1]=1;
    k=n+1;
    while (a[k]==0)
    {
        ///afisez submultimile
        for (i=1; i<=n; i++)
            if (a[i]==1)
                fout << i << " ";
        fout << "\n";
        ///ultima submultime
        for (i=1; a[i]==1; i++)
            a[i]=0;
        a[i]=1;
    }
    fin.close();
    fout.close();
    return 0;
}