#include <fstream>

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

inline void Combinari(short int c)
{
    if(c==K+1)
    {
        for(short int i=1; i<=K; i++)
            fout<<Vector[i]<<' ';
        fout<<'\n';
    }
    else for(Vector[c]=Vector[c-1]+1; Vector[c]<=N; Vector[c]++)
        Combinari(c+1);
}

int main()
{
    fin>>N>>K;
    Combinari(1);
}