Lisa is planning to fill a rectangular swimming pool for her backyard. The pool measures 10 meters in length, 5 meters in width, and 2 meters in depth. She needs to calculate the total volume of water required to fill the pool in cubic meters. Additionally, water is supplied to her home in liters, and she knows that 1 cubic meter equals 1000 liters. How many liters of water are needed to fill the pool completely? Let's think step by step and output the final answer within \boxed{}.
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