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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 do_intersect(bb1, bb2):
 """ Helper function that returns True if two bounding boxes overlap. """

    if bb1[0] + bb1[2] < bb2[0] or bb2[0] + bb2[2] < bb1[0]:
        return False
    if bb1[1] + bb1[3] < bb2[1] or bb2[1] + bb2[3] < bb1[1]:
        return False
    return True