#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

vector<int> v(100);
int n, k;
ifstream in("combinari.in");
ofstream out("combinari.out");

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

void comb(int p = 1) {
    for(int i = v[p - 1] + 1; i <= n; ++i){
        v[p] = i;
        if(p == k){
            print();
        }else{
            comb(p + 1);
        }
    }
}

int main()
{
    in >> n >> k;
    comb();
    return 0;
}