From d858da19be73ee36c1d3cd841f457c0b5150bc15 Mon Sep 17 00:00:00 2001
From: Heiko Ludwig <heiko.ludwig@mpinat.mpg.de>
Date: Tue, 3 Dec 2024 20:48:17 +0100
Subject: [PATCH] don't accept numbers > 999 for the multiplication command

---
 day_03/program.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/day_03/program.py b/day_03/program.py
index bd5f517..519242a 100755
--- a/day_03/program.py
+++ b/day_03/program.py
@@ -12,7 +12,7 @@ def get_lines(filename: str) -> list:
 
 def part1_get_result_sum(lines: list) -> int:
     result_sum = 0
-    pattern = re.compile(r"mul\((\d+),(\d+)\)")
+    pattern = re.compile(r"mul\((\d{1,3}),(\d{1,3})\)")
     for line in lines:
         matches = re.findall(pattern, line)
         for match in matches: