Sarah has a collection of 120 marbles. She decides to give some to her friends. She gives 15 marbles each to 3 friends and then divides the remaining marbles equally among herself and 2 more friends. How many marbles does each of the 3 people (herself and the 2 friends) get after she has given 15 marbles to the first 3 friends? Let's think step by step and output the final answer within \boxed{}.
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