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