Xiao Ming cooks by himself at noon. It takes him 2 minutes to wash rice, 5 minutes to wash and chop vegetables, 14 minutes to cook, and 13 minutes to cook in a rice cooker. How many minutes does it take Xiao Ming at least to complete these tasks?
小明中午自己做饭吃，他淘米要用2分钟，洗菜切菜要5分钟，烧菜要14分钟，电饭煲烧饭要13分钟，小明完成这些工作最少要花多少分钟．
<gadget id="calculator">2 + 5 + 14</gadget>
<output>21</output>

<result>21</result>