Fix runner for day 1

run

@@ -34,6 +34,10 @@ def convert_to_camel_case(inp: str) -> str:
     return "".join(parts)
 
 
+def filter_for_filename(inp: str) -> str:
+    return "".join(filter(lambda x: x.isalpha() or x.isdigit() or x == "-", inp))
+
+
 def load_credentials() -> dict[str, str]:
     with open("credentials.json") as f:
         return json.load(f)
@@ -86,10 +90,10 @@ class CLI(object):
         if page_resp.status_code == 404:
             print("Challenge page not found: has that day been released yet?", file=sys.stderr)
             raise SystemExit(1)
-        
+
         page_resp.raise_for_status()
 
-        matches = re.findall(r"--- Day \d{1,2}: ([\w ]+) ---", page_resp.content.decode())
+        matches = re.findall(r"--- Day \d{1,2}: ([\w \?!]+) ---", page_resp.content.decode())
         assert len(matches) >= 1, "must be able to discover at least one day title"
         day_title = matches[0]
 
@@ -97,7 +101,7 @@ class CLI(object):
 
         p = Path(CHALLENGES_DIR)
         p /= str(year)
-        p /= str(day).zfill(2) + "-" + convert_to_camel_case(day_title)
+        p /= str(day).zfill(2) + "-" + filter_for_filename(convert_to_camel_case(day_title))
 
         os.makedirs(p)