Lulu steamed the eggs. It took 1 minute to beat the eggs, 2 minutes to chop the green onions, 2 minutes to stir the eggs, 2 minutes to wash the pot, 6 minutes to boil the water, and 10 minutes to steam the eggs. It took 23 minutes in total. How many minutes the workflow can be completed.
露露蒸鸡蛋，打蛋用1分钟，切葱用2分钟，搅蛋用2分钟，洗锅用2分钟，烧水用6分钟，蒸蛋用10分钟，一共用了23分钟，若合理安排工作流程多少分钟即可完成．
<gadget id="calculator">2 + 6 + 10</gadget>
<output>18</output>

<result>18</result>