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