60w
 +-----------------+
8| r r r   r   r r |
7| r     d   c   r |
6|       D m       |
5|                 |
4|       h     c   |
3| H h   e     H R |
2| R R E R   C     |
1| R       M R R R |
 +-----------------+
   a b c d e f g h