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

using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");

int n, k;
vector <int> v;

void comb(int s)
{
    if(s == k)
    {
        for(int i = 1; i <= k; i++)
            out << v[i] << " ";
        out << '\n';
        return;
    }
    for(int i = v[s] + 1; i <= n; i++)
    {
        v.push_back(i);
        comb(s + 1);
        v.pop_back();
    }
}

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