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