8w
 +-----------------+
8| r r r   r   r r |
7| r   m c   c   r |
6| d h   h     d   |
5|                 |
4|             e   |
3| H     E     H   |
2| R C D   D C   R |
1| R R R M   R R R |
 +-----------------+
   a b c d e f g h