Xiao Ming's elder brother has just joined the job. The employment period is 3 months, and the monthly salary is 1,800 yuan. After being officially hired, the monthly salary is 2,600 yuan. How much salary does Xiao Ming's elder brother get after working for half a year?
小明的哥哥刚参加工作，使用期3个月，每月工资1800元，正式录用后每月工作2600元，小明的哥哥工作半年后，共拿了多少工资？
<gadget id="calculator">6 - 3</gadget>
<output>3</output>

<gadget id="calculator">1_800 * 3</gadget>
<output>5_400</output>

<gadget id="calculator">2_600 * 3</gadget>
<output>7_800</output>

<gadget id="calculator">5_400 + 7_800</gadget>
<output>13_200</output>

<result>13_200</result>