diff -r 72e43cb53c13 -r 312c9eb39ad8 main_testing4/knight_test9.scala
--- a/main_testing4/knight_test9.scala	Mon Nov 08 01:16:13 2021 +0000
+++ b/main_testing4/knight_test9.scala	Mon Nov 08 01:39:00 2021 +0000
@@ -1,4 +1,4 @@
-import CW9c._
+import M4c._
 
 //type Pos = (Int, Int)
 //type Path = List[Pos]