diff -r 34d2cfb7761a -r 86d59b074abe cw5_marking/c3.sc
--- a/cw5_marking/c3.sc	Fri Sep 18 10:57:24 2026 +0100
+++ b/cw5_marking/c3.sc	Fri Sep 18 10:58:01 2026 +0100
@@ -5,5 +5,5 @@
 
 val mand = os.read(os.pwd / "mand.fun")
 
-test_string(mand, "mand")
+urban_test_string(mand, "mand")