Before going to work, Mr. Wang needs to complete a few things: tidy up the room for 5 minutes, put the clothes in the washing machine for 1 minute, wash the clothes in the washing machine for 20 minutes, and eat for 10 minutes. Then Mr. Wang can go to work in the shortest few minutes.
王老师上班前要完成一下几件事：整理房间5分钟，把衣服放入洗衣机要1分钟，洗衣机洗衣服要20分钟，吃饭10分钟．那么王老师最短多少分钟就可以上班．
<gadget id="calculator">20 + 1</gadget>
<output>21</output>

<result>21</result>