5
2 5 4 2
1 10 49 1
1 10 52 0
1 10 52 5
1 10 52 50

+-----+
|AA.. |
|AA.. |
+-----+
+----------+
|EEEEEEEE.D|
+----------+
+----------+
|AAEEEEEEEE|
+----------+
+----------+
|..EEEEE...|
+----------+
+----------+
|..........|
+----------+