diff -r de59aa20a1dc -r ffce7b61b446 main_testing3/re_test5.scala
--- a/main_testing3/re_test5.scala	Mon Nov 08 01:16:13 2021 +0000
+++ b/main_testing3/re_test5.scala	Mon Nov 08 01:39:00 2021 +0000
@@ -1,4 +1,4 @@
-import CW8c._ 
+import M3._ 
 val EVIL_urban = SEQ(STAR(STAR(CHAR('a'))), CHAR('b'))
 
 assert(size(der('a', der('a', EVIL_urban))) == 28)