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Fake Note

A man (M) bought a product worth Rs 200 from the Shopkeeper (X).
He paid him through a 1000 Rs Note.
Realizing that he did not have change, the shopkeeper X got change for that note from another shopkeeper (Y) and paid Rs 800 to the man.

After a few days, Y realized that the note is fake, And this railed at X and took 1000 Rs back from him.

So in this whole process how much money did X loose in the end?

Answer is a integer. Just put the number without any decimal places if its an integer. If the answer is Infinity, output Infinity.

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