def main():
    greeting = input("Greeting:\t\t")
    print(value(f"${greeting}"))


def value(greeting: str) -> str:
    greeting = greeting.lower().strip()
    if greeting.startswith("hello"):
        return 0
    elif greeting.startswith("h"):
        return 20
    else:
        return 100


if __name__ == "__main__":
    main()