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

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

const int maxn = 20;
int V[maxn], n, k;

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

void Back(int x) {
    for (int i = V[x - 1] + 1; i <= n; i++) {
        V[x] = i;
        if (x == k) {
            Print();
        } else {
            Back(x + 1);
        }
    }
}

int main() {
    ios_base::sync_with_stdio(false);
    fin >> n >> k;
    Back(1);
    return 0;
}