d3a.py

# -*- coding: utf-8 -*-
"""
Created on Tue Dec  3 09:37:50 2024

@author: zoë
"""

import re


with open("input", "r") as file:
    data = file.readlines()


product_sum = 0
for row in data:
    valid_sequences = re.findall(r"mul\([0-9]+,[0-9]+\)", row)
    for item in valid_sequences:
        nums = item.strip(")").strip("mul(").split(",")
        product = int(nums[0]) * int(nums[1])
        product_sum += product

print(f"Sum of all products: {product_sum}")