--- a/main_testing3/re_test1.scala	Mon Nov 08 01:16:13 2021 +0000
+++ b/main_testing3/re_test1.scala	Mon Nov 08 01:39:00 2021 +0000
@@ -1,4 +1,4 @@
-import CW8c._
+import M3._
 
 assert(nullable(ZERO) == false)
 assert(nullable(ONE) == true)