Mr. Wang bought 3 boxes of film for 48 yuan, and Mr. Li bought 2 boxes of the same film for 34 yuan. Who bought the cheapest film? How much cheaper?
王老师买3盒胶卷花了48元，李老师买同样的胶卷2盒花了34元，问谁买的胶卷便宜？便宜多少钱？
<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">48 / 3</gadget>
<output>16</output>

<gadget id="calculator">17 - 16</gadget>
<output>1</output>

<result>1</result>