Xiaoming and Xiaohua take the buckets to the faucet to receive water. The faucet costs 6 points to fill Xiaoming's bucket, and 4 points to fill Xiaohua's bucket. Now there is only one faucet, whoever gets the water first will have the least total waiting time? What is the minimum time?
小明和小华拿着水桶到水龙头前接水，水龙头注满小明的桶要6分，注满小华的桶要4分．现在只有一个水龙头，谁先接水两人等待的总时间最少？最少时间是多少？
<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<gadget id="calculator">8 + 6</gadget>
<output>14</output>

<result>14</result>