What a mess! 18-20, no Part 2 solve. Oh well!

2023/18/otherexamples/input-example-octo.txt

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+R 2 ()
+D 2 ()
+R 3 ()
+U 6 ()
+R 10 ()
+D 6 ()
+L 1 ()
+U 5 ()
+L 8 ()
+D 8 ()
+R 11 ()
+D 3 ()
+L 2 ()
+D 3 ()
+R 6 ()
+D 7 ()
+L 4 ()
+U 2 ()
+R 2 ()
+U 4 ()
+L 6 ()
+D 9 ()
+L 9 ()
+U 3 ()
+R 1 ()
+D 2 ()
+R 7 ()
+U 8 ()
+L 18 ()
+U 7 ()
+R 3 ()
+D 1 ()
+L 2 ()
+D 5 ()
+R 6 () 
+U 5 ()
+L 1 ()
+U 6 ()