Alissa used discarded paper to make notepads for her friends. She would fold 5 pieces of letter-size paper 3 times and then cut along the edges to form smaller note papers. She would then stack these smaller note papers and staple them together. If each notepad contains 80 small note papers and Alissa made 10 notepads, how many pieces of letter-size paper did she use in total? Let's think step by step and output the final answer within \boxed{}.
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