#include <iostream>
#include <fstream>

using namespace std;

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

int N, K;
int St[20];

void Afisare ()
{
    int i;

    for (i = 1; i <= K; i ++)
        out << St[i] << " ";

    out << "\n";
}

void Back (int lvl)
{
    if (lvl == K + 1){
        Afisare ();
        return;
    }

    int i;

    for (i = St[lvl - 1] + 1; i <= N; i ++){
        St[lvl] = i;
        Back (lvl + 1);
    }
}

int main()
{
    in >> N >> K;
    Back(1);

    return 0;
}