#include <fstream>
#include <algorithm>
using namespace std;

ifstream cin("combinari.in");
ofstream cout("combinari.out");

#define DIM 20

int sol[DIM + 1], n, m;

static inline void Afis() {
  for(int i = 1; i <= m; i++)
    cout << sol[i] << " ";
  cout << '\n';
}

static inline void Back(int k) {
  if(k > m)
    Afis();
  else for(int i = sol[k - 1] + 1; i <= n; i++) {
    sol[k] = i;
    Back(k + 1);
  }
}

int main() {
  cin >> n >> m;
  Back(1);

  return 0;
}