#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
bitset <17> D;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n,A[17];
void afis(int k)
{
    for (int i=1;i<=k;i++)
        fout<<A[i]<<" ";
    fout<<"\n";
}
void bk(int k)
{
    for (int i=A[k-1]+1;i<=n;i++)
    {
        A[k]=i;
        afis(k);
        bk(k+1);
    }
}
int main()
{
    fin>>n;
    bk(1);
    return 0;
}