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

using namespace std;

void back(vector<int> &v, int n, int k, int t, ofstream &out)
{
    for (int i = v[t - 1] + 1; i <= n; i++) {
        v[t] = i;
        if (t == k) {
            for (int i = 1; i <= k; i++) {
                out << v[i] << " ";
            }
            out << "\n";
        } else {
            back(v, n, k, t + 1, out);
        }
    }
}

int main()
{
    ifstream in("combinari.in");
    ofstream out("combinari.out");
    
    int n, k;
    in >> n >> k;
    
    vector<int> v;
    v.reserve(k + 1);
    for (int i = 0; i <= k; i++) {
        v[i] = 0;
    }
    
    back(v, n, k, 1, out);
    
    in.close();
    out.close();

    return 0;
}