#include <fstream>
using namespace std;
ifstream in("submultimi.in");
ofstream out("submultimi.out");
const int N = 18;
int st[N], n;
bool viz[N];
void afis(int l){
    for(int i=1;i<=l;i++)
        out<<st[i]<<" ";
    out<<"\n";
}
void bkt(int l){
    for(int i=st[l-1]+1;i<=n;i++)
        if(viz[i] == false){
            viz[i] = true;
            st[l] = i;
            afis(l);
            bkt(l+1);
            viz[i] = false;
        }
}
int main()
{
    in>>n;
    in.close();
    bkt(1);
    out.close();
    return 0;
}