Xiaoxue's house, Xiaoli's house and the school are on the same road. Xiaoxue's house is 319 meters away from the school, and Xiaoli's house is 183 meters away from the school. How far are the two of them? Parallel calculations.
小雪家、小丽家和学校在同一条路上，小雪家到学校319米，小丽家到学校183米，他们俩家和学校的位置可能有多少种情况．他们两家有多远？并列式计算．
<result>2</result>