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