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