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