import json

file = open('input.txt', 'r')
decoded = json.loads(file.read())
#decoded = json.loads('{"a":{"b":4},"c":-1}')
#decoded = json.loads('[1,{"c":"red","b":2},3]')

total = 0

def contains_red(pIterable):
    contains_red = False
    for k, v in pIterable.items():
        if isinstance(v, str):
            if v == "red":
                contains_red = True
    return contains_red

def recurse(pIterable):
    global total
    if isinstance(pIterable, dict):
        if contains_red(pIterable):
            return
        for k, v in pIterable.items():
            if isinstance(v, list) or isinstance(v, dict):
                recurse(v)
            elif isinstance(v, int):
                total += int(v)
    
    elif isinstance(pIterable, list):
        for a in pIterable:
            if isinstance(a, list) or isinstance(a, dict):
                recurse(a)
            elif isinstance(a, int):
                total += int(a)

recurse(decoded)
print(total)