#include <fstream>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
short N, K;
short x[19];

void afis(short p)
{
    for(short i = 1; i <= p; ++i) fout<<x[i]<<' ';
    fout<<'\n';
}

void Comb(short p)
{
    if(p == K + 1) afis(p - 1);

    else for(short i = x[p - 1] + 1; i <= N - K + p; ++i)
        {
            x[p] = i;

            Comb(p + 1);
        }
}

int main()
{
    fin>>N>>K;

    Comb(1);

    return 0;
}