Your    Possible
Table   Results 
-----  ----- -----
  A     A B   A H 
  B     C D   B I 
  C     E F   C J 
  D     G H   D K 
  E     I J   E L 
  F     K L   F M 
  G     M N   G N 
  H    
  I    
  J    
  K    
  L    
  M    
  N