+                  |
+                  |
-                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+                  |
+  b    b      b   |
+                  |
+                  |
+         i        |
+                  |
+       a          |
+     b     b      |
+                  |
#                  |
+             a    |
+    a   x         |
+                  |
+ f                |
+      f    f      |
+   4              |
+           d      |
*                  |
+  h      h        |
+                  |
+  e      g        |
+                  |
+   a  b    4      |
+                  |
+  i        i      |
*                  |
+                  |
+      4           |
+                  |
+        3         |
+    a a a a a     |
+      4           |
*                  |
+        d         |
+                  |
+   b         b    |
+                  |
*      a   a       |
+                  |
+                  |
*  a  c      c  a  |
+                  |
+                  |
+                  |
*d                e|
+                  |
+                  |
+                  |
+        1         |
!                  |
+                  |
3                  |
+                  |
