#include <bits/stdc++.h>
using namespace std;

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

int n, k, c[101];

void combinations(int len, int start) {
    if (len == k) {
        for (int i = 0; i < k; ++i) {
            fout << c[i] << " ";
        }
        fout << "\n";
        return;
    }

    for (int i = start; i <= n; ++i) {
        c[len] = i;
        combinations(len + 1, i + 1);
    }
}

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