Swap Keys Values

Swap keys and values of a dictionary. Assume all values are unique. Example: {'a':1,'b':2} => {1:'a',2:'b'}

Your task

Implement this function:

def swap_kv(d: dict) -> dict:

Write the function only — the arguments are read for you and the return value is printed automatically.

Arguments arrive as one Python literal per line, in this order: d.

Example

Input

{'a': 1, 'b': 2}

Output

{1: 'a', 2: 'b'}