diff --git a/24.4.py b/24.4.py
index 66161a9..a9a5773 100644
--- a/24.4.py
+++ b/24.4.py
@@ -1,5 +1,5 @@
 import re
 
-str1=open('24_4.txt').read()
+str1=open('24_5.txt').read()
 result=re.findall(r'((?:\d[A-Z])+|(?:[A-Z]\d)+)',str1)
 print(max(list(map(len,result))))
\ No newline at end of file