#include<stdio.h>
int n,m,sol[20];
void scrie()
{
    for(int i=1;i<=m;++i)
        printf("%d ",sol[i]);
    printf("\n");
}
void back(int k)
{
    if(k==m+1)
    {
        scrie();
        return;
    }
    for(int i=1+sol[k-1] ; i<=n-m+k ; ++i)
    {
        sol[k]=i;
        back(k+1);
    }
}
int main()
{
    freopen("submultimi.in","r",stdin);
    freopen("submultimi.out","w",stdout);
    scanf("%d",&n);
    for(m=1;m<=n;m++)
        back(1);
    return 0;
}