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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 _adjust_crop_box(box, crop):
 """ Given a fit box and a crop box, adjust one to the other """


        if crop and box:
            # Both boxes are the same size; just line them up.
            return (box[0] + crop[0], box[1] + crop[1],
                    box[2] + crop[0], box[3] + crop[1])

        if crop:
            # We don't have a fit box, so just convert the crop box
            return (crop[0], crop[1], crop[0] + crop[2], crop[1] + crop[3])

        # We don't have a crop box, so return the fit box (even if it's None)
        return box