import sys
from functools import wraps
# from __future__ import print_function


def takes(*args):
    def help(f):
        @wraps(f)
        def inner(*args2):
            for i in range(min(len(args), len(args2))):
                if not isinstance(args2[i], args[i]):
                    raise TypeError
            f(*args2)
        return inner
    return help


exec(sys.stdin.read())