378 TIMES PAPER PLANE

The experience of flying a paper airplane is often frustrating because one sheet of paper can only make one airplane. Users usually have to fly it once, then go pick it up to fly it again. So why not let one sheet of paper make more airplanes? Therefore, an A4 sheet of paper is divided into 378 small squares, so people can make 378 paper airplanes and enjoy the continuous fun of flying paper airplanes.