Uncle Lin is 34 years old this year, and Fang Lin is 8 years old this year. After 12 years, what is the age difference between Uncle Lin and Fang Fang?
林叔今年34岁，林芳今年8岁，12年后，林叔和林芳相差多少岁．
<gadget id="calculator">34 + 12</gadget>
<output>46</output>

<gadget id="calculator">8 + 12</gadget>
<output>20</output>

<gadget id="calculator">46 - 20</gadget>
<output>26</output>

<result>26</result>