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