#include <stdio.h>
#include <string.h>
#include <algorithm>

using namespace std;

int n;
int st[20];

void back(int lvl)
{
    if (lvl)
    {
       for (int i = 1;i <= lvl;i++)
           printf("%d ",st[i]);

       printf("\n");
    }

    for (int i = st[lvl] + 1;i <= n;i++)
    {
        st[lvl + 1] = i;
        back(lvl + 1);
    }
}

int main()
{
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);

     scanf("%d",&n);
     back(0);

  return 0;
}