Given a bucket of characters, and a list of strings. Write a function word_builder(bucket, l) that returns the maximum number of strings you can create using the bucket of characters. The bucket is given in form of a dictionary, and a list of strings will be provided: bucket = { 'a': 2, 'b': 2, 'k': 2 } L = ['aa', 'bb', 'ak', ,'bk', 'ba'] # the maximum numbers of strings you can create is 3: ['ak', ,'bk', 'ba'] you only need to maximize the number of created strings, not necessarily consume all characters in the bucket in python