After borrowing 125 books in the class book corner, the students have returned 95 books one after another. Now there are 103 books in the book corner. How many books are there in the Book Corner?
班级图书角里的书籍，借出125本后，同学们又陆续归还了95本，现在图书角还有图书103本．图书角原有图书多少本？
<gadget id="calculator">125 - 95</gadget>
<output>30</output>

<gadget id="calculator">30 + 103</gadget>
<output>133</output>

<result>133</result>