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

ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
int n, k, v[1001];

void bkt(int lg, int uc) {
    if (lg == k + 1) {
        for (int j = 1; j <= k; ++j) {
            fout << v[j] << ' ';
        }
        fout << '\n';
        return;
    }
    for (int i = uc; i <= n; ++i) {
        v[lg] = i;
        bkt(lg + 1, i + 1);
    }

}

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