A suit is 480 yuan, and a shirt is 121 yuan. How much will it cost to buy 25 suits and 15 shirts?
一套西服480元，一件衬衫121元，买25套西服和15件衬衫一共要花多少钱？
<gadget id="calculator">480 * 25</gadget>
<output>12_000</output>

<gadget id="calculator">121 * 15</gadget>
<output>1_815</output>

<gadget id="calculator">12_000 + 1_815</gadget>
<output>13_815</output>

<result>13_815</result>