#include <iostream>
#include <fstream>
#define maxn 17

using namespace std;

ifstream f("submultimi.in");
ofstream g("submultimi.out");

int a[maxn],k,n;

void afisare()
{
    for (int i=1;i<=k;i++)
        g << a[i] << " ";
    g << endl;
}

void back(int q)
{
    if (q == k+1)
    {
        afisare();
        return;
    }
    for(int i=1+a[q-1];i<=n-k+q;++i)
    {
        a[q] = i;
        back(q+1);
    }
}

int main()
{
    f >> n;
    for (k=1;k<=n;k++)
    {
        back(1);
    }
    return 0;
}