https://sites.google.com/d/162I4QiYUsHvWgD2_wbKyf02nsAr8v4j5/p/1Gm2uTJ86u-QMnMjQQBZtKksZS9L7YZuJ/edit
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣴⣺⡟⢳⣌⢲⣷⡇⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⣀⣤⡶⣦⣤⣀⣀⡸⠉⠀⠀⠈⢳⡊⠀⣠⣴⣶⡄⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⢿⣿⣛⣿⣿⣿⣿⣿⣿⣶⣶⣶⣶⣿⣿⣿⣿⣿⠃⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠈⠛⣿⣿⣿⣿⣿⠏⠁⣀⣤⠀⠀⢨⣿⣿⠟⠁⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⣻⠀⠀⡜⠉⢩⡵⣭⡍⠱⡄⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢠⣤⣠⣪⡞⠀⠀⠳⣀⡀⣠⢇⣀⡴⣇⣀⠀⠀⠀⠀⠀⠀
⣬⣭⣭⣥⣤⣤⣤⣬⣿⣟⣿⣿⢅⣀⠀⠀⠀⠺⣀⡠⠃⠀⠘⣷⣿⣿⣿⣶⣦⠀
⡿⣿⣿⣿⣿⣿⣿⡿⠟⠋⣄⠈⢷⣌⡙⡲⠶⠤⠤⠤⠴⠖⠋⡟⠈⢏⠛⠿⣿⠀
⣿⣿⣿⣿⣿⠟⠉⡀⠀⠁⣸⡄⠀⠁⠻⢷⢄⡀⠀⠀⠀⠀⣸⠃⠀⠈⣇⠀⠀⠉
⣉⣉⣉⣹⠧⠤⡈⠠⡀⢣⣼⠃⠀⠀⠀⠀⢸⠈⢱⠢⠤⠼⠹⡄⠀⠀⠘⡄⠀⠀
⠀⠀⢀⡇⠀⣀⣼⣶⡏⠉⠁⠀⠀⠀⠀⠀⢸⠀⢸⠀⠀⢀⣀⡇⠀⠀⠀⢳⠒⠀
⠀⠀⠀⠈⠉⠁⠀⠘⢄⣀⠀⠀⠀⠀⠀⠀⢸⣩⠏⠉⠉⠹⣭⣇⣀⣀⣤⣞⣀⣀
⠒⠒⠒⠚⠛⠛⠛⠁⠈⠉⢏⠉⣹⡾⢿⣿⣿⣷⣦⢤⣤⣴⣾⣿⣿⣿⡏⠀⠀⠀
⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠼⠶⠄⠀⠀⠛⢻⠟⠀⠈⠻⡛⠛⠛⣹⠛⠃⠀⠀⠀