A car and a bus drive from Binhai to Shanghai at the same time. The bus travels an average of 98 kilometers per hour, and the car travels an average of 118 kilometers per hour. After 4 hours, the car arrives in Shanghai. How many kilometers away is the bus from Shanghai?
一辆轿车与一辆客车同时从滨海开往上海，客车平均每小时行98千米，轿车平均每小时行118千米，经过4小时轿车到达上海，这时客车离上海还有多少千米？
<gadget id="calculator">118 * 4</gadget>
<output>472</output>

<gadget id="calculator">98 * 4</gadget>
<output>392</output>

<gadget id="calculator">472 - 392</gadget>
<output>80</output>

<result>80</result>