#include <fstream>
using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int n,m,k[20];
void combinari(int x,int nr)
{ if(x<=m)
  { for(int i=nr+1;i<=n-(m-x);i++)
      k[x]=i,combinari(x+1,i);
  }
  else
  { for(int i=1;i<=m;i++)
      out<<k[i]<<" ";
    out<<'\n';
  }
}
int main()
{ in>>n>>m;
  combinari(1,0);
  in.close();
  out.close();
  return 0;
}