54b
 +-----------------+
8| r r r   m r r r |
7| r d d       c   |
6|   h     E   c   |
5|           e     |
4|                 |
3| D H         D r |
2| R   M C   C   R |
1| R R R       R R |
 +-----------------+
   a b c d e f g h