#include <fstream>

using namespace std;

int a[30];

int main()
{
    int i,n;
    ifstream fin("submultimi.in");
    ofstream fout("submultimi.out");
    fin>>n;
    a[n]=1;
    while (a[0]==0)
    {
        //afisez subm

        for(i=1;i<=n;i++)
            if(a[i]==1) fout<<i<<" ";
        fout<<"\n";
        //trec la urm subm
        for(i=n;a[i]==1;i--) a[i]=0;
        a[i]=1;
    }
    return 0;
}