#include <fstream>

using namespace std;

ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
unsigned short int comb[17];

void backtr(unsigned short int n, unsigned short int ind = 1)
{
    for(unsigned short int i = comb[ind - 1] + 1; i <= n; i++){
        comb[ind] = i;
        backtr(n, ind + 1);
        for(unsigned short int j = 1; j <= ind; j++){
            fout << comb[j] << " ";
        }
        fout << '\n';
    }
}

int main()
{
    unsigned short int n;
    fin >> n;
    backtr(n);
    return 0;
}