#include <iostream>
#include <fstream>
using namespace std;

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

int v[20], k, n;

void write() {
    for (int i = 1; i <= k; i++) {
        fout << v[i] << " ";
    }
    fout << "\n";
}

void backtracking(int pas) {
    int i;
    if (pas <= k) {
        for (i = v[pas - 1] + 1; i <= n; i++){
            v[pas] = i;
            backtracking(pas + 1);
        }
    }
    else {
        write();
    }
}

int main() {
    fin >> n >> k;
    backtracking(1);
    return 0;
}