#include <bits/stdc++.h>

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

void subm(int v[],int p,int n)
{
    if(p==n+1)
    {
        for(int i=1;i<=n;i++)
            if(v[i])
                g<<i<<" ";
        g<<"\n";
        return ;
    }
    v[p]=1;subm(v,p+1,n);
    v[p]=0;subm(v,p+1,n);
}
int v[18];
int main()
{
    int n;
    f>>n;
    subm(v,1,n);
}