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