In this kata, you will take the keys and values of a dict and swap them around.

You will be given a dictionary, and then you will want to return a dictionary with the old values as the keys, and list the old keys as values under their original keys.

For example, given the dictionary: {'Ice': 'Cream', 'Age': '21', 'Light': 'Cream', 'Double': 'Cream'},

you should return: {'Cream': ['Ice', 'Double', 'Light'], '21': ['Age']}

Notes:

• The dictionary given will only contain strings
• The dictionary given will not be empty
• You do not have to sort the items in the lists