There are guests at home, and my mother asks Xiao Ming to boil water and make tea for the guests. It takes 1 minute to wash the kettle, 15 minutes to boil the water, 1 minute to wash the teapot, 1 minute to wash the teacup, and 2 minutes to take the tea leaves. Please help Xiao Ming calculate how many minutes it takes at least to finish these things.
家里来客人了，妈妈让小明给客人烧水沏茶．洗水壶用1分钟，烧水15分钟，洗茶壶用1分钟，洗茶杯用1分钟，拿茶叶用2分钟，请你帮小明算一算，干完这些事最少需要多少分钟．
<gadget id="calculator">1 + 15</gadget>
<output>16</output>

<result>16</result>