The car goes to refuel, there are 2 gas stations, car A takes 7 minutes, car B takes 8 minutes, car C takes 9 minutes, car D takes 4 minutes, car E takes 2 minutes, car F takes 5 minutes, ask for the minimum refueling and waiting How many minutes is the time.
车子去加油，2个加油站，A车要7分钟，B车要8分钟，C车要9分钟，D车要4分钟，E车要2分钟，F车要5分钟，求最少加油和等候时间是多少分钟．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">2 + 7 + 8 + 4 + 7 + 4 + 5 + 9 + 8 + 5</gadget>
<output>59</output>

<result>59</result>