diff -r 244df77507c2 -r 253d1ccb65de main_marking5/bf_test4c.scala
--- a/main_marking5/bf_test4c.scala	Sun Sep 15 12:57:59 2024 +0100
+++ b/main_marking5/bf_test4c.scala	Mon Jul 21 16:38:07 2025 +0100
@@ -1,6 +1,10 @@
-import M5a._
+
+def urbanmain() = {
+  import M5a._
 
-val urban_generate = 
-"""+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]"""
+  val urban_generate = 
+    """+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]"""
 
-assert(generate("ABC".toList) == urban_generate)
+  assert(generate("ABC".toList) == urban_generate)
+
+}