Among the "King of Mathematics" subscribed by the three classes in the third grade, 56 books are not from the first class, 58 are not from the second class, and 26 are neither from the first class nor the second class. How many books did the three classes of the third grade order in total?
在三年级三个班订阅的《数学大王》中，有56本不是一班的，58本不是二班的，26本既不是一班的，也不是二班的．三年级三个班一共订了多少本？
<gadget id="calculator">56 - 26</gadget>
<output>30</output>

<gadget id="calculator">58 + 30</gadget>
<output>88</output>

<result>88</result>