The school bought a batch of balls, including 28 basketballs, 115 yuan each; 32 footballs, 108 yuan each. Which ball to buy more money? How much is it?
学校买了一批球，其中篮球28个，每个115元；足球32个，每个108元．买哪种球花的钱多？多几元？
<gadget id="calculator">108 * 32</gadget>
<output>3_456</output>

<gadget id="calculator">115 * 28</gadget>
<output>3_220</output>

<gadget id="calculator">3_456 - 3_220</gadget>
<output>236</output>

<result>236</result>