"Fairy Tale" is 125 yuan per set, and "Story Club" is 18 yuan per set. The school needs to buy these two kinds of books for the library, 3 sets of each. How much does it cost in total?
《童话故事》每套125元，《故事会》每套18元．学校要为图书馆买这两种书，每种3套．一共要多少钱？
<gadget id="calculator">125 + 18</gadget>
<output>143</output>

<gadget id="calculator">143 * 3</gadget>
<output>429</output>

<result>429</result>