The sum of the ages of Xiaohua and her mother this year is 50 years old. In a year, what is the sum of their ages?
小华和妈妈今年的年龄和是50岁，再过a年，两个人的年龄和是多少岁．
<gadget id="calculator">50 + 2</gadget>
<output>52</output>

<result>52</result>