DMS Mathematica

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Problem description N number of Postage Stamps are available in a newly opened Shop. Different Stamps have different ID's (1,2,3, ...) to distinguish one from other. Collecting Stamps is Ashish's hobby. One day his friend, Devesh, told him about the collection in that Shop. They both went to the Shop to purchase stamps. A philately competition was going on. Being too much excited, Ashish wanted t

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