#include <iostream>
#include <fstream>

using namespace std;

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

int n, k;
int arr[20];

void comb(int used, int start) {
    if (used == k) {
        for (int i = 0; i < k; i++)
            fout << arr[i] << " ";
        fout << "\n";
    }
    for (int i = start; i <= n; i++) {
        arr[used] = i;
        comb(used+1, i+1);
    }
}


int main() {
    fin >> n >> k;
    comb(0, 1);
}