Xiao Gang is 10 years old this year, and his father is 36 years old this year. When his father is 50 years old, what is Xiao Gang's age?
小刚今年10岁，爸爸今年36岁，当爸爸50岁时，小刚的年龄是多少岁．
<gadget id="calculator">50 - 36</gadget>
<output>14</output>

<gadget id="calculator">14 + 10</gadget>
<output>24</output>

<result>24</result>