__doc__ = u"""
    >>> def test(a, b):
    ...     return (a, b, add(a, b))

    >>> test(1, 2)
    (1, 2, 3)
    >>> [ str(f) for f in test(17.3, 88.6) ]
    ['17.3', '88.6', '105.9']
    >>> test(u'eggs', u'spam')
    (u'eggs', u'spam', u'eggsspam')
"""

import sys
if sys.version_info[0] >= 3:
    __doc__ = __doc__.replace(u"u'", u"'")

def add(x, y):
    return x + y