'''
Given two arrays of integers, compute the pair of values (one value in each array) with the smallest (non-negative) difference. Return the difference.

Example:
    Input: {1, 3, 15, 11, 2}, {23, 127, 235, 19, 8}
    Output: 3. That is, the pair (11, 8).

Hints: 632, 670, 679
'''


def smallest_diff(s):
    pass

if __name__ == '__main__':
    assert smallest_diff('') ==
    assert smallest_diff('') ==
    assert smallest_diff('') ==
    assert smallest_diff('') ==
    assert smallest_diff('') ==
