#include <iostream>
#include <stdio.h>

using namespace std;

FILE *f=fopen("submultimi.in","r");
FILE *g=fopen("submultimi.out","w");

int s[17],n;

void afis(int k)
{
    int i;
    for(i=1;i<=k;i++)
    fprintf(g,"%d ",s[i]);
    fprintf(g,"\n");
    return;
}



void back(int k)
{
    int i;

    for(i=s[k-1]+1;i<=n;i++)
    {

        s[k]=i;
        afis(k);
        if(k<n) back(k+1);
    }


    return;
}




int main()
{
    s[0]=0;
    fscanf(f,"%d",&n);
    back(1);
    fclose(g);
    return 0;
}