import json

data = open(0).read().strip()
part_2 = False

def addup(d):
    r = 0
    if isinstance(d, list):
        for e in d:
            v = addup(e)
            if v is not None:
                r += v
    elif isinstance(d, dict):
        for e in d.values():
            v = addup(e)
            if v is None:
                return 0
            r += v
    elif isinstance(d, str):
        if part_2 and d == "red":
            return None
    else:
        r += d
    return r

data = json.loads(data)
print(addup(data))