import json

with open("input") as f:
    document = f.readline().strip()

document = json.loads(document)


def iterate_object(json_object):
    object_sum = 0
    object_type = type(json_object)

    if object_type == list:
        for item in json_object:
            object_sum += iterate_object(item)
    elif object_type == int:
        return json_object
    elif object_type == str:
        pass
    elif object_type == dict:
        for item in json_object.values():
            if item == "red":
                return 0
            object_sum += iterate_object(item)
    else:
        raise TypeError(f"No case for type {object_type}!")

    return object_sum


print(iterate_object(document))