#include <iostream>
#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");

int n, k, cnt, R[21];

void Afisare()
{
    for (int i = 1; i <= k; ++i)
        fout << R[i] << " ";
    fout << '\n';
}

void Back(int p)
{
    if (p > k)
        return Afisare();
    for (int i = R[p - 1] + 1; i <= n; ++i)
    {
        R[p] = i;
        Back(p + 1);
    }
}

int main()
{
    fin >> n >> k;
    Back(1);

    return 0;
}