I can't bear to throw away my old work from N years ago, so I publish it here just to commemorate it. If you don't like it, don't disturb it. O(∩_∩)O Thank you
Be careful if you step on thunder, we will not be held responsible. ε=ε=ε=(~￣▽￣)~
Who didn't win the second round~o(*////▽////*)q