Li Sheng read a storybook. On the first day, he read half of the book and less than 10 pages. On the second day, he read the remaining half and more than 4 pages. There are still 12 pages left. How many pages are there in this storybook?
李胜同学读一本故事书，第一天读了全书的一半少10页，第二天读了余下的一半多4页，还剩下12页没有读，这本故事书有多少页．
<gadget id="calculator">12 + 4</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<gadget id="calculator">32 - 10</gadget>
<output>22</output>

<gadget id="calculator">22 * 2</gadget>
<output>44</output>

<result>44</result>