A piece of square paper is folded in half twice, each part is its ((())/(())), how many such 1 copies are there in this paper.
一张正方形的纸，对折2次，每份是它的((())/(()))，这张纸共有多少个这样的1份．
<gadget id="calculator">4 / 1</gadget>
<output>4</output>

<result>4</result>