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