There are 26 bricks, and the two brothers are struggling to pick them. The younger brother rushed to the front, and the bricks had just been placed when the elder brother rushed over. The elder brother saw that the younger brother picked too much, so he took half of the younger brother for himself. The younger brother thought he could do it, so he took half of it from his elder brother. The elder brother refused, so the younger brother had to give the elder brother another 5 yuan, so that the elder brother would pick 2 yuan more than the younger brother. At first, how many bricks did the younger brother plan to pick.
有26块砖，兄弟2人挣着去挑．弟弟抢在前面，刚摆好砖，哥哥赶来了．哥哥看弟弟挑的太多，就从弟弟那拿了一半给自己．弟弟觉得自己能行，又从哥哥那里拿来一半．哥哥不让，弟弟只好再给哥哥5块，这样哥哥比弟弟多挑2块．最初弟弟准备挑多少块砖．
<gadget id="calculator">12 + 5</gadget>
<output>17</output>

<gadget id="calculator">14 - 5</gadget>
<output>9</output>

<gadget id="calculator">17 - 9</gadget>
<output>8</output>

<gadget id="calculator">8 + 8</gadget>
<output>16</output>

<result>16</result>