#include <bits/stdc++.h>

using namespace std;

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

const int MAX_N = 1e1 + 5;

int n, k;

vector <int> v(MAX_N, 0);
vector <bool> used(MAX_N, 0);

void bkt(int p) {
  if (p == k + 1) {
    for (int i = 1; i <= k; ++i) {
      fout << v[i] << " ";
    }
    fout << "\n";
  } else {
    for (int i = v[p - 1] + 1; i <= n; ++i) {
      v[p] = i;
      bkt(p + 1);
    }
  }
}

int main() {
  fin >> n >> k;
  bkt(0 + 1);
  return 0;
}