#!/usr/bin/env python

import re

def read_input(filename):
    with open(filename) as f:
        for line in f:
            line = line.strip()
            yield line
    
def main(args):
    memory = read_input(args.file)
    
    result = 0
    for memory in read_input(args.file):
        mul_list = re.findall(r'mul\((\d+)\,(\d+)\)', memory)
        for mul in mul_list:
            x = int(mul[0]) * int(mul[1])
            result += x
    print(result)

if __name__ == "__main__":
    import argparse
    
    parser = argparse.ArgumentParser(
        prog='AdventOfCode 2024, Day 03, part 1',
    )
    parser.add_argument('-f', '--file', required=True)
    args = parser.parse_args()
    main(args)