x No Plagiarism!mhBawYIKl9cNM45SllLSposted on PENANA How to math?8964 copyright protection798PENANAx4kXJpk9RK 維尼Did I do correctly?8964 copyright protection798PENANAMzOLOxhYS8 維尼216.73.216.39ns216.73.216.39da2