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