When someone is in 2008, his age is exactly the sum of the numbers of the year he was born, how old is he this year.
某人在2008年时，他的年龄恰好是他出生那一年年份的数字之和，他今年多少岁．
<gadget id="calculator">2 + 0 + 0 + 3</gadget>
<output>5</output>

<result>5</result>