+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
   |                 |        |              |
+  +  +--+--+  +  +  +  +--+  +--+--+  +--+  +
|  |     |  |  |  |  |  |        |  |  |     |
+  +--+  +  +  +  +  +  +--+--+  +  +  +  +--+
|  |     |     |  |  |     |  |     |  |     |
+  +--+  +--+--+--+  +--+  +  +--+  +  +--+  +
|     |  |        |        |        |     |  |
+--+  +  +--+--+  +--+--+  +--+--+--+  +  +  +
|     |  |        |     |  |     |     |  |  |
+  +--+  +  +--+  +  +  +  +  +  +  +--+  +--+
|     |  |     |     |  |     |  |  |  |     |
+  +--+  +--+  +--+--+  +--+--+  +  +  +--+  +
|  |     |        |     |        |        |  |
+  +  +--+  +--+--+  +--+--+--+  +--+  +--+  +
|  |  |     |     |           |        |     |
+  +  +  +  +--+  +--+--+--+  +--+--+--+  +  +
|        |        |        |     |  |     |  |
+--+  +--+--+--+--+  +--+  +  +  +  +  +--+  +
|  |  |     |     |     |  |  |  |     |     |
+  +  +--+  +  +--+--+  +  +--+  +--+--+--+--+
|  |        |           |           |        |
+  +  +--+--+--+--+--+--+--+  +--+  +--+--+  +
|  |     |                    |     |     |  |
+  +--+  +  +--+--+--+--+--+--+  +--+  +  +  +
|  |     |  |        |           |     |  |  |
+  +  +--+--+  +--+  +--+--+--+  +  +--+  +  +
|  |  |           |  |              |     |  |
+  +  +  +--+--+  +--+  +--+--+  +--+  +--+  +
|     |        |        |           |         
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
Solution[X]