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