+-----------------------------------+
|+-------+                 +-------+|
|| /     |                 |     \ ||
|| \     |                 |     / ||
|+-------+                 +-------+|
|+-------+                 +-------+|
|| /     |                 |     \ ||
|| \     |                 |     / ||
|+-------+                 +-------+|
|+-------+                 +-------+|
|| /     |                 |     \ ||
|| \     |                 |     / ||
|+-------+                 +-------+|
|+-------+                 +-------+|
|| /     |                 |     \ ||
|| \     |                 |     / ||
|+-------+                 +-------+|
|+-------+                          |
|| /     |                       \  |
|| \     |                        \ |
|+-------+                         \|
+----------------------------+      +