Li Liang's work tomorrow morning includes: washing rice for 2 minutes, steaming rice in a rice cooker for 20 minutes, shampooing for 4 minutes, and eating breakfast for 8 minutes. How does Li Liang arrange the shortest time? How many minutes is it.
李亮明天早晨的工作有：淘米2分钟，电饭锅蒸饭20分钟，洗发4分钟，吃早饭8分钟．李亮怎样安排所用时间最短？是多少分钟．
<gadget id="calculator">2 + 20 + 8</gadget>
<output>30</output>

<result>30</result>