#include<fstream>
#include<iostream>
using namespace std;
ifstream fin  ("combinari.in");
ofstream fout ("combinari.out");

int st[18], n, k;

void Citire()
{
  fin >> n >> k;
}

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

void Back (int top)
{
   int i;
   if (top == k+1) Afisare();
   else
    for (i=st[top-1]+1; i<=n-k+top; i++)
     {
        st[top]=i;
        Back(top+1);
     }
}

int main ()
{
  Citire();
  Back(1);
  fin.close();
  fout.close();
  return 0;
}