#include <fstream>
using namespace std;

ifstream is("submultimi.in");
ofstream os("submultimi.out");

int n, x[17];

void SOLVE(int k);
void WRITE(int k);

int main()
{
    is >> n;
    SOLVE(1);
    is.close();
    os.close();
    return 0;
}

void SOLVE(int k)
{
    if ( k > n )
        return;
    for ( int i = x[k - 1] + 1; i <= n; ++i )
    {
        x[k] = i;
        WRITE(k);
        SOLVE(k + 1);
    }
}

void WRITE(int k)
{
    for ( int i = 1; i <= k; ++i )
        os << x[i] << " ";
    os << "\n";
}