#include <vector>
#include <iostream>
#include <fstream>

using namespace std;

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

int N,K;

vector<int> sol;


void bkt(int pas) {
    if(pas == K) {
        for(int i = 0; i < K; i++) {
             fout << sol[i] << " ";
        }
        fout << "\n";
        return;
    }


    int start_val;
    if(pas == 0) {
        start_val = 1;
    }else {
        start_val = sol[pas-1] + 1;
    }
    
    for(int i = start_val; i <= N; i++) {
        sol[pas] = i;
        bkt(pas+1);
    }
}

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

    sol.resize(N);

    bkt(0);

    fin.close();
    fout.close();
    return 0;
}