The holiday time for the spring break of this semester is: the holiday starts on April 26, and the school returns to school on May 4. How many days are there in total?
本学期春假放假时间为：4月26日开始放假，5月4日回校上学，一共放假了多少天．
<gadget id="calculator">26 - 1</gadget>
<output>25</output>

<gadget id="calculator">30 - 25</gadget>
<output>5</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<result>8</result>