#!/usr/bin/env python score = { ')': 3, ']': 57, '}': 1197, '>': 25137, } closing = { '(': ')', '[': ']', '{': '}', '<': '>', } def check_line_score(line): stack = "" for c in line: if c in '{([<': stack += c continue l = stack[-1] if c != closing[l]: return score[c] stack = stack[:-1] return 0 total = 0 with open("input01.txt","r") as f: for line in f: total += check_line_score(line.strip()) print(total)