Little Naughty wants to boil water and make tea for the guests. It takes 1 minute to wash a kettle, 1.5 minutes to boil a pot of water, and 2 minutes to wash a teacup. In order to make the guests drink tea as soon as possible, after reasonable arrangement, the tea can be brewed in the shortest few minutes.
小淘气要给客人烧水沏茶．洗水壶要1分钟，烧开一壶水要1,5分钟，洗茶杯要用2分钟．为了使客人尽早喝上茶，合理安排后，最短多少分钟就能沏好茶．
<gadget id="calculator">1 + 15</gadget>
<output>16</output>

<result>16</result>