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