#include <fstream>
using namespace std; 
ifstream cin("combinari.in");
ofstream cout("combinari.out");
short n,k;
short Tab[20];

void back(int a)
 {
 if (a>k)
  {
   for (int i=1;i<=k;++i) cout<<Tab[i]<<" ";
   cout<<"\n";
   return;
  }
  for (int i=Tab[a-1]+1;i<=n;++i)
     {
      Tab[a]=i;
      back(a+1);
	 }
 }
 
int main(void)
{
 cin>>n>>k;
 back(1);	
 return 0;
}