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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _izip(*iterables):
 """ Iterate through multiple lists or arrays of equal size """

    # This izip routine is from itertools
    # izip('ABCD', 'xy') --> Ax By

    iterators = map(iter, iterables)
    while iterators:
        yield tuple(map(next, iterators))