The two brothers have 30 stamps in total. If the elder brother gives the younger brother 4 stamps and still has 2 more stamps than the younger brother, how many stamps did the elder brother originally have?
兄弟俩共有邮票30张，如果哥哥给弟弟4张后还比弟弟多2张，哥哥原来有邮票多少张．
<gadget id="calculator">30 + 4 + 4 + 2</gadget>
<output>40</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<result>20</result>