Fix argument insertion

Uebung-01/MaMa.py

@@ -41,13 +41,20 @@ class MaMa:
 
     # Decodes string MaMa instructions to function callables
     @staticmethod
-    def decode(micro: str) -> Tuple[str, Optional[List[int]]]:
+    def decode(micro: str) -> Tuple[str, Optional[List[Any]]]:
         if "(" in micro:
             name, rest = micro.split("(", 1)
-            args_str = rest[:-1]
-            if args_str.strip() == "":
+            args_str = rest[:-1].strip()
+            if args_str == "":
                 return name, []
-            args = [int(a.strip()) for a in args_str.split(",")]
+            args = []
+            for a in args_str.split(","):
+                a = a.strip()
+                try:
+                    a = int(a)
+                except ValueError:
+                    pass  # keep symbolic argument (e.g., 'n')
+                args.append(a)
             return name, args
         return micro, None