Teacher Li asked students A, B, and C to come to the office to talk. A takes 15 minutes to finish the conversation, B takes 8 minutes to finish the conversation, and C takes 10 minutes to finish the conversation. How to arrange the conversation order of the three people to minimize the conversation time? How many minutes is the minimum?
李老师找甲、乙、丙三名同学来办公室谈话．甲要15分钟谈完，乙要8分钟谈完，丙要10分钟谈完．怎样安排三人的谈话顺序能使谈话的时间最少？最少是多少分钟？
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">10 * 2</gadget>
<output>20</output>

<gadget id="calculator">15 * 1</gadget>
<output>15</output>

<gadget id="calculator">24 + 20 + 15</gadget>
<output>59</output>

<result>59</result>