A carton of ice cream contains 10 scoops each.  Mary has 3 cartons of ice cream, one chocolate, one strawberry and one vanilla.  Ethan wants one scoop of vanilla and one of chocolate.  Lucas, Danny and Connor all want 2 scoops of chocolate.  Olivia would like a scoop of vanilla and one of strawberry.  Shannon wants twice as much as Olivia.  How many scoops of ice cream will be left?
Please reason step by step, and put your final answer within \boxed{}.
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