#include <fstream>
#define NMAX 20

using namespace std;

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

int N, K, st[NMAX];

void Combinari(int k)
{
    if (k == K + 1) // s-a gasit solutie
    {
        for (int i = 1 ; i <= K ; ++i)
            fout << st[i] << " ";
        fout << endl;
    }
    else // se completeaza pozitia k
    {
        for (int i = st[k - 1] + 1 ; i <= N - K + k ; ++i)
        {
            st[k] = i;
            Combinari(k + 1);
        }
    }
}

int main()
{
    fin >> N >> K; // Combinari de n luate cate k in ordine lexicografica
    Combinari(1);
    return 0;
}