#!/usr/bin/env python3

lines = (x.strip() for x in open("input.txt"))

cnt = 0
OPEN, CLOSE, PENALTY = "([{<", ")]}>", [3, 57, 1197, 25137]
MAP_CLOSE, MAP_PENALTY = dict(zip(OPEN, CLOSE)), dict(zip(CLOSE, PENALTY))
for line in lines:
    stack = []
    for char in line:
        if char in OPEN:
            stack.append(char)
        elif MAP_CLOSE[stack.pop()] != char:
            cnt += MAP_PENALTY[char]
            break

print(cnt)