#include <fstream.h>
ifstream fin ("combinari.in");
ofstream fout ("combinari.out");
int n,m,sir[20];
void back (int k)
{
  if ((k-1)==m)
  {
     for (int i=1;i<=m;i++)
       fout<<sir[i]<<" ";
     fout<<"\n";
     return ;
  }
  for (int p=sir[k-1]+1;p<=n;p++)
  {
      sir[k]=p;
      back(k+1);
  }
}

int main ()
{
  fin>>n>>m;
  back(1);
  fin.close();
  fout.close();
  return 0;
}