Xinguang children's clothing store produces 8 sets of children's clothing on average every day. How many sets of children's clothing were produced in the second quarter?
新光儿童服装店，平均每天生产童装8套，第二季度生产了多少套童装？
<gadget id="calculator">30 + 31 + 30</gadget>
<output>91</output>

<gadget id="calculator">91 * 8</gadget>
<output>728</output>

<result>728</result>