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