In this task you are given a sentence. You must judge whether there exist two consecutive words within the sentence with flipped orders, that is, whether the sentence will make sense and be correct if the order of two consecutive words changes. Label the instances as "Inversion" or "Original" based on your judgment.

Input: Consider Input: In the center of the desk, in front of a brown leather office chair, were four open laptops and one single perfectly sharpened pencil.

Output: Original


Input: Consider Input: Looking at Nick now, he'd very changed little.

Output: Inversion


Input: Consider Input: Not mention to useful.


Output: Inversion