#include <iostream>
#include <fstream>

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

int n, i, v[21], p, k;

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

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

int main () {
    
    fin >> n >> k;
    back(1);
}