F,R

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡀⣤⣤⠴⠥⣕⣐⠤⣄⠀⠀
⠀⠀⠀⠀⠀⠀⣀⣴⣖⣶⡦⡄⠀⠀⠀⠀⠀⠀⣴⡿⣻⣿⣿⣯⣿⣿⣙⣝⣷⣣⡀
⠀⠀⠀⢀⣴⣯⣿⣿⣷⣯⣟⣿⣆⠀⠀⠀⣴⣿⣿⢗⡿⠛⠛⠛⠺⣟⣟⣽⡿⣳⡇
⠀⢀⣶⣷⣿⣳⣿⣿⠿⢯⡿⣿⣮⣧⢠⣿⡿⣿⠯⠋⠀⠀⠀⠀⠀⠈⣷⣷⣿⢯⣿
⢠⡾⣿⣿⣯⠝⠁⠀⠀⠀⢹⣷⣷⣿⣿⣿⣽⠁⠀⠀⠀⠀⠀⠀⠀⠀⣯⣿⣿⣷⡏
⢽⡿⣿⡻⠁⠀⠀⠀⠀⠀⠀⠈⢿⣿⣿⣻⠃⠀⠀⠀⠀⠀⠀⠀⠀⢴⡽⣯⣷⣿⠃
⢹⣯⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠈⠳⠝⠃⠀⠀⠀⠀⠀⠀⠀⠀⣠⣿⢿⢯⣿⠃⠀
⠈⡿⣿⢳⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⣿⣿⣿⣾⠁⠀⠀
⠀⢹⣿⣛⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣴⣷⣿⣿⣿⡿⠁⠀⠀⠀
⠀⠀⠹⣟⢺⡷⣆⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣶⣗⢯⡿⢿⣿⠏⠀⠀⠀⠀⠀
⠀⠀⠀⠙⢯⣯⣟⣿⣧⣄⡀⠀⠀⠀⠀⠀⠀⡼⣻⡿⣿⣿⡿⠏⠁⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠑⢳⣟⣿⣿⣛⣷⡄⠀⠀⠀⣼⢿⣿⢧⡿⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠈⠙⣿⣿⡿⣙⣳⣄⣼⣏⡿⡿⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢏⡻⣯⡿⣿⣏⣟⡿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠺⡻⣏⢟⣿⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠻⣷⠇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀