There are 198 soft seats on a train, and the number of hard seats is 4 times that of soft seats. How many seats are there in total on this train?
一趟列车上共有198个软席座位，硬席座位数是软席的4倍．这趟列车上一共有多少个座位？
<gadget id="calculator">198 * 4</gadget>
<output>792</output>

<gadget id="calculator">198 + 792</gadget>
<output>990</output>

<result>990</result>