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