from lib import get_data

data = get_data(__file__).strip()

OPEN = "([{<"
CLOSE = ")]}>"


def part1(line):
    score = {
        ")": 3,
        "]": 57,
        "}": 1197,
        ">": 25137,
    }
    stack = []
    for c in line:
        if c in OPEN:
            stack.append(OPEN.index(c))
        elif c in CLOSE:
            ci = CLOSE.index(c)
            if stack and stack[-1] == ci:
                stack.pop()
                continue
            else:
                return score[c]
        else:
            assert False
    return 0


def part2(line):
    stack = []
    for c in line:
        if c in OPEN:
            stack.append(OPEN.index(c))
        elif c in CLOSE:
            ci = CLOSE.index(c)
            if stack and stack[-1] == ci:
                stack.pop()
                continue
            else:
                assert False
        else:
            assert False
    score = 0
    for v in reversed(stack):
        score *= 5
        score += v + 1
    return score


s1 = 0
s2s = []
for line in data.splitlines():
    s = part1(line)
    if s == 0:
        s2s.append(part2(line))
    s1 += s

print(s1)
s2 = sorted(s2s)[len(s2s) // 2]
print(s2)