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