The opening ceremony of the school sports meeting held a large-scale group gymnastics performance. There are 8 square formations, each square formation has 25 rows, and each row has 25 people. How many people participated in the group gymnastics performance?
学校运动会开幕式举行大型团体操表演，有8个方阵，每个方阵有25行，每行有25个人．一共有多少人参加团体操表演？
<gadget id="calculator">25 * 25 * 8</gadget>
<output>5_000</output>

<result>5_000</result>