diff -r e03a0100ec46 -r 769bda18a43d core_templates2/docdiff.scala
--- a/core_templates2/docdiff.scala	Fri Dec 08 00:54:36 2023 +0000
+++ b/core_templates2/docdiff.scala	Mon Dec 25 01:10:55 2023 +0100
@@ -8,7 +8,7 @@
 //======================
 
 //(1)
-def clean(s: String) : List[String] = ???
+def clean(s: String) : List[String] = List("bla")