First fold it vertically N times according to the width of the words you need to write, then fold it into vertical strips and then fold it horizontally N times according to the height of the words. In this way, the squares will come out. Don’t open them, just fold them in each square separately. Just fold it at a 45-degree angle in both directions, and then unfold it completely (think about how you folded the four-cornered treasure and the three-cornered treasure when you were a child)