The book corner of class 3 and 2 borrowed half of the books on the first day, and 26 books were borrowed on the second day, and there were still 28 books left. How many books are there in the book corner?
三2班的图书角第一天借出了存书的一半，第二天又借出了26本书，这时还剩下28本．图书角原来有图书多少本．
<gadget id="calculator">26 + 28</gadget>
<output>54</output>

<gadget id="calculator">54 * 2</gadget>
<output>108</output>

<result>108</result>