It is 245 meters from my home to the company. I go back and forth twice a day. How many meters does Mr. Pig walk every day?
从我家到公司有245米，每天我往返两次，猪先生每天要走多少米？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">245 * 4</gadget>
<output>980</output>

<result>980</result>