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

using namespace std;

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

void bkt(int pas, int   n, int k, int start, vector<int>& solutie) {
    if (pas == k) {
        for (int x : solutie) {
            fout << x << " ";
        }
        fout << "\n";
        return;
    }

    for (int i = start; i <= n; i++) {
        solutie.push_back(i);

        bkt(pas + 1, n, k, i + 1, solutie);

        solutie.pop_back();
    }
}

int main() {
    int n, k;
    fin >> n;
    fin >> k;

    vector<int> solutie;

    bkt(0, n, k, 1, solutie);
    return 0;
}