def solution(pairs):
    return ''.join(['{} = {},'.format(x,y) for x,y in sorted(pairs.items())])[:-1]

'''
Complete the solution so that it takes the object (JavaScript/CoffeeScript)
or hash (ruby) passed in and generates a human readable string from its key/value pairs.

The format should be "KEY = VALUE". Each key/value pair should be separated by a
comma except for the last pair.

Example:

solution({"a": 1, "b": '2'}) # should return "a = 1,b = 2"
'''
