On average, Uncle Wang delivered 26 express mails every working day. If calculated on the basis of 22 working days per month, how many express mails will Uncle Wang deliver every six months?
王叔叔平均每天工作日投送26个快递邮件．如果每月按22个工作日计算，王叔叔半年一个投送多少个快递邮件？
<gadget id="calculator">26 * 22 * 6</gadget>
<output>3_432</output>

<result>3_432</result>