#include <iostream>
#include <fstream>

using namespace std;
int rez[10005];
int n,len;
void back_tracking(int ok)
{
    if(ok>n)
    {
        if(ok==0)
            return;
        for(int i=1;i<=len;i++)
        {
            if(rez[i]!=0)
                cout<<rez[i]<<" ";
        }
        cout<<'\n';
        return;
    }
    else
    {
        len++;
        rez[len]=ok;
        back_tracking(ok+1);

        len--;
        back_tracking(ok+1);
        return;
    }
    return;
}

int main()
{
    ifstream cin("submultimi.in");
    ofstream cout("submultimi.out");
    cin>>n;
    back_tracking(1);



    return 0;
}