Santa's elves are creating treat bags containing a selection of Kit Kats, Reese's cups and Almond Joys. (A) How many different types of bags can they make containing 11 chocolate bars. (B) How many different types of bags can they make containing 11 chocolate bars if Santa wants to have at least 1 Kit Kat(s), 1 Reese's cup(s) and 1 Almond Joy(s) in the bag.

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