There are guests at Xiaogang’s house, and he entertains the guests to do the following things. The time required is: boil water for 10 minutes, wash fruit for 3 minutes, and make tea for 2 minutes. How many minutes does he need at least?
小刚家来了客人，他招待客人做下面的事情，分别所需的时间是：烧开水10分，洗水果3分，沏茶2分，他至少需要多少分
<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<result>12</result>