Take out two eggs weighing 50 grams from the basket, and there are 400 grams of eggs left in the basket. How many grams of eggs are there in the basket?
从篮子里拿出2个都是50克重的鸡蛋，篮子里还剩下400克鸡蛋，篮子里原来有鸡蛋多少克？
<gadget id="calculator">2 * 50</gadget>
<output>100</output>

<gadget id="calculator">100 + 400</gadget>
<output>500</output>

<result>500</result>