Emily is preparing gift bags for a party. She needs to put 3 types of candies in each bag: chocolate bars, gummy bears, and lollipops. She plans to put 4 chocolate bars, 5 gummy bears, and 7 lollipops in each bag. If she wants to prepare 10 gift bags, how many candies in total does she need to buy? Let's think step by step and output the final answer within \boxed{}.
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