#include <iostream>
#include <fstream>

using namespace std;

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

const int NMAX = 20;

int N, K;
int v[NMAX];

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

void Back(int level)
{
    if(level > K) {
        Afisare();
        return;
    }

    for(int i = v[level - 1] + 1; i <= N; ++i) {
        v[level] = i;
        Back(level + 1);
    }
}

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

    Back(1);
    return 0;
}