At the school sports meeting, the 1K race was going on, Xiaoling ran 80 meters in front of Xiaoqiang, Xiaolei was 100 meters behind Xiaojun, and Xiaojun was 60 meters in front of Xiaoqiang. Who is at the front now? Who's at the end? How many meters are the two apart?
学校运动会上，1千米比赛正在进行，小玲跑在小强前面80米，小雷在小军后面100米处，小军在小强前面60米处．这时谁在最前面？谁在最后？两人相距多少米？
<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">100 + 20</gadget>
<output>120</output>

<result>120</result>