25
15
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
|               |               |       |           |                       |                       |
+---+---+---+   +---+---+   +   +---+   +---+---+   +---+---+---+---+---+   +   +---+---+---+   +---+
|       |           |       |       |               |                       |               |       |
+   +   +   +---+   +   +---+---+---+   +---+---+   +   +---+---+   +---+   +---+---+---+---+   +   +
|   |   |   |       |   |   |       |       |       |       |   |   |                       |   |   |
+   +   +   +   +---+   +   +   +   +---+   +---+---+---+   +   +   +---+---+---+---+---+   +---+   +
|   |       |   |       |       |   |       |       |       |   |               |           |       |
+   +---+   +   +   +---+   +---+   +   +   +   +---+   +---+   +---+---+   +---+   +---+---+   +   +
|   |   |   |       |   |   |       |   |       |               |       |   |   |   |           |   |
+   +   +   +---+---+   +   +---+---+   +---+---+   +---+---+---+   +---+   +   +   +   +---+---+   +
|       |           |   |   |       |               |               |       |   |   |   |           |
+   +---+---+   +---+   +   +   +   +---+---+   +---+   +---+---+   +   +---+   +   +   +   +---+---+
|       |   |           |   |   |               |       |       |   |           |       |   |       |
+---+   +   +---+---+---+   +   +---+---+   +---+   +---+---+   +   +---+---+   +---+---+   +---+   +
|       |               |       |           |       |   |       |   |           |       |       |   |
+   +---+   +   +---+---+---+   +   +---+---+   +   +   +   +---+---+   +---+---+   +---+   +   +   +
|   |       |   |           |   |   |           |   |   |       |       |           |   |   |       |
+   +---+   +---+   +---+   +---+   +   +---+---+   +   +---+   +   +---+   +---+---+   +   +---+   +
|       |               |   |               |       |       |               |           |   |       |
+   +   +---+   +   +   +   +   +---+---+   +---+---+---+   +---+---+---+---+   +---+---+   +---+   +
|   |       |   |   |   |       |           |           |   |       |       |       |       |       |
+   +---+   +   +   +---+---+---+   +---+---+   +---+   +   +   +---+   +   +   +   +   +---+   +---+
|       |       |       |           |               |       |   |       |       |           |       |
+   +---+---+---+---+---+   +---+---+---+---+   +   +---+---+   +   +---+---+   +---+---+---+---+   +
|           |       |               |       |   |   |       |       |       |   |           |       |
+---+---+   +   +   +---+   +---+---+   +   +---+   +   +   +   +---+   +---+   +   +---+   +   +---+
|           |   |   |               |   |       |   |   |       |       |       |   |       |       |
+   +---+---+   +---+   +---+   +   +   +---+   +   +   +---+---+   +---+---+---+   +   +---+---+   +
|               |       |       |       |           |           |                   |               |
+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
