After the elder brother gave the younger brother 4 pieces of candy, the older brother had the same amount of candy as the younger brother, and the elder brother had more candies than the younger brother.
哥哥给弟弟4块糖后，哥哥与弟弟的糖一样多，哥哥原来比弟弟多多少块糖．
<gadget id="calculator">10 + 4</gadget>
<output>14</output>

<gadget id="calculator">10 - 4</gadget>
<output>6</output>

<gadget id="calculator">14 - 6</gadget>
<output>8</output>

<result>8</result>