There are three layers of books on the bookshelf, and there are 192 books in total. Now take out as many books from the first layer as the second layer and put them on the second layer, and then take out the same number of books from the second layer as the third layer and put them on the third layer. Finally, take out the same number of books as the rest of the first floor from the third floor and put them on the first floor. At this time, the number of books in the three floors is the same. How many books are there on the first floor of the original bookshelf?
书架上有三层书，一共放书192本，现在从第一层取出与第二层同样多的书放到第二层，再从第二层取出同第三层同样多的书放到第三层，最后从第三层取出同第一层剩下的同样多的书放到第一层，这时三层书的本数相同．原来书架的第一层有多少本．
<gadget id="calculator">192 / 3</gadget>
<output>64</output>

<gadget id="calculator">64 + 32</gadget>
<output>96</output>

<gadget id="calculator">96 / 2</gadget>
<output>48</output>

<gadget id="calculator">64 + 48</gadget>
<output>112</output>

<gadget id="calculator">112 / 2</gadget>
<output>56</output>

<gadget id="calculator">32 + 56</gadget>
<output>88</output>

<result>88</result>