Вспомнилась одна реактортянка из прошлого
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣤⣶⣶⣶⣦⣤⣄⣤⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡤⢲⣿⣵⠿⣫⡷⣾⣿⠿⢿⣿⣿⣿⣦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⡞⠃⣴⠟⣁⡴⢟⡷⡿⢁⡤⠾⠉⢀⡈⣹⣿⡿⣿⣤⠀⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣴⢯⡿⢀⣾⠃⢾⠏⢠⠎⣼⣳⢋⣀⣤⣴⣶⣖⣿⣿⣽⠜⣿⣧⠀⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣼⡟⣺⣧⣞⣿⣡⡿⣁⠗⣶⣾⠿⠿⠖⠛⠛⠉⠁⠸⣞⡎⢰⢮⢿⡆⠀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⣿⠽⡟⠁⣹⣿⢿⢼⢹⢾⠮⣸⣀⠀⠀⠀⠀⠀⠀⠀⢻⣳⡎⢸⣼⣿⡀⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣾⡿⣹⣼⣿⠀⣿⣿⣯⣞⣮⣾⣴⣋⠸⣷⠀⠀⠀⠀⠀⠀⢸⢿⡇⢸⢿⣿⡇⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣾⣿⢳⣿⣿⢹⡇⠹⣸⣿⡞⣿⣿⣿⡿⣿⢦⠀⠀⢀⡤⣤⡤⣾⢸⣷⣿⣾⣿⣧⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⡼⣹⣻⣹⢼⣿⣿⣟⣷⡾⢻⣜⣦⣀⠉⠻⠄⢋⣷⡷⠦⣤⢬⣽⣞⣁⢻⡇⣷⢃⣧⣿⠀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⢷⣿⣿⡟⣹⡆⢙⣿⣿⢇⣼⣧⠈⠈⠉⠑⠒⠚⠉⢠⠸⡿⣿⣿⡿⢾⣽⣷⢹⣻⣿⣿⡀⠀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠀⣸⢿⣿⡼⣿⡇⣾⢸⣷⣿⣼⢹⡆⠀⠀⠀⠀⠀⢠⡏⠀⠹⢦⡉⠃⠌⢹⣿⣸⠏⣟⡟⣷⣄⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠰⣿⣋⣿⣾⡿⡇⣿⣿⣼⣿⣿⠟⠁⠀⠤⡀⠀⣀⠀⠀⠀⠀⠀⠙⠏⢲⣿⣿⣿⣾⡿⣷⡋⢈⠆⠀
⠀⠀⠀⠀⠀⠀⠀⣼⣡⣯⣻⡟⣹⣷⡽⣻⡿⣽⣿⡇⠀⠀⠀⠀⠀⠀⠙⠦⠀⠀⠀⢀⣴⣿⡿⣿⣽⡍⣿⡨⠿⠋⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢇⣧⣳⢿⢺⣏⠉⢿⣿⣿⡻⢿⣙⢦⡀⠀⠀⠀⠀⠀⠀⠀⠀⣠⣼⣿⣡⣻⡽⣼⢟⡿⣻⣄⡀⠀⠀
⠀⠀⠀⠀⠀⠀⠀⠈⢹⡟⣿⣿⣿⣟⣿⣽⣿⣱⣿⣯⡱⠙⣦⣄⣀⡠⠤⢲⣶⣿⣷⣟⣿⣿⣹⣽⣿⣞⡓⢿⡈⠻⡆⠀
⠀⠀⠀⠀⠀⠐⠶⣶⣶⣿⢿⣯⣿⣯⣿⣿⣿⣷⣿⢻⡷⡀⠈⠳⣄⠀⢀⣾⣿⡞⢿⣿⠻⡟⢻⣽⣽⣿⠫⣿⣻⣴⠃⠀
⠀⠀⠀⠀⣠⣶⣟⣛⣛⣷⣿⣿⣿⣿⣿⣿⠿⣻⠇⢾⣷⣹⠀⠀⢈⡕⠺⣜⣼⣦⣸⡿⢧⣸⣾⣿⣻⣿⣿⠛⠉⠁⠀⠀
⠀⠀⢠⡞⠻⣧⣴⠾⣿⣿⣿⠛⢿⣿⣿⣿⡟⠢⣤⡾⣥⡏⠀⢀⡮⠤⠤⠤⠤⠉⠙⠻⣏⣧⣏⡷⠋⠈⠙⢟⠲⡄⠀⠀
⠀⠀⡎⠀⠀⠈⠙⠻⠿⠛⢅⣀⣀⡽⢿⣿⣿⠉⣀⡔⣩⠇⠀⠛⠀⠀⠀⠢⢤⣝⣳⣶⣿⣹⢿⣇⡀⠀⠀⠈⣧⠇⠀⠀
⠀⣸⠁⠀⠀⠀⠀⠀⠀⠀⠀⣀⣀⣀⣀⣷⣿⣰⣏⠉⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣴⠟⢯⡒⠷⠮⢤⡄⠉⠙⡆⠀⠀
⠀⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⠛⠿⠛⠛⠁⠈⠉⠓⠂⠀⠀⠀⠀⠀⠀⠀⠀⠚⠉⠀⠀⠀⠈⣴⠈⠉⠀⠀⠀⡇⠀⠀
⠀⡇⠀⠀⠀⠀⠀⠀⠀⢿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠇⠀⠀⠀⠀⠀⡇⠀⠀
⠀⢻⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢧⠀⠀⠀⠀⠀⡇⠀⠀
⠀⢨⣇⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⢣⠀⠀⠀⢸⣟⢦⠀
⢀⡟⡟⢦⡀⠀⠀⠀⠀⡎⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢧⠀⠀⢸⠟⢸⠃
⣜⠀⠑⠄⠙⢦⡀⠀⠀⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⡆⣠⠏⢠⡏⠀
⢈⡷⣄⡀⠀⠀⠉⠓⢦⣿⣤⣄⣀⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢹⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣀⡤⢞⡿⢉⡔⢻⡄⠀
⢺⡅⠙⠛⠶⢄⡀⠀⠀⠁⠀⠀⠀⠀⠉⠉⠙⠒⠢⠤⣄⡀⠀⠀⢸⠀⠀⠀⠀⠀⢀⣠⠴⠚⠉⠀⠀⠀⠀⠀⠀⣺⠇⠀
⠻⣄⢀⡠⠒⠊⠉⠑⢲⣄⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠙⠲⠼⣆⡀⠀⣠⠴⠋⠀⠀⠀⠀⠀⠀⠀⠀⢀⡴⢻⠀⠀
⠀⠈⣏⢠⣒⣲⠶⠚⠉⠀⠈⠳⣄⠀⠐⢖⠶⢤⣀⠀⠀⠀⠀⠀⠀⠀⠉⠛⠷⣾⣗⠒⠂⠀⠀⠀⠀⣀⡴⠋⡠⢺⡆⠀
⠀⠀⡽⠉⣀⠀⠀⣠⠞⠉⣉⡙⢿⣄⠀⠀⠉⠚⠭⠽⢦⣤⣀⣀⣀⡀⠀⠀⢀⡟⠁⠁⠀⣀⡤⠖⠚⠓⠒⢉⡴⠛⡇⠀
⠀⠀⢻⡍⡼⠁⠀⠀⠔⢋⡠⠛⠛⠛⠛⠛⠲⠾⣽⣛⣲⣦⢤⣀⣀⣉⣳⠶⠯⠤⠴⠒⣋⢥⣿⢀⣀⠀⢰⡏⠀⠀⢷⠀
⠀⠀⠀⢹⡃⠀⢠⠴⡶⢋⣠⠤⠤⠤⣤⣄⣀⠀⠀⠀⠊⠉⠁⠀⠀⠀⠈⠉⠉⠉⠋⠉⠉⣭⡿⠷⢻⣳⣄⠙⢦⠀⣸⠀
⠀⠀⠀⠘⣆⠀⠿⠊⠀⠿⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣀⣀⠀⠀⠀⡴⠀⠀⠀⠀⠀⣰⠋⠙⢿⡽⡆⢻⡃⠀
⠀⠀⠀⠀⠈⠻⢦⣤⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡀⠀⠀⠀⠈⠳⢼⣧⠀⠠⡁⣴⠀⠀⠀⡼⠁⠀⠀⢠⡉⢇⢨⠇⠀
⠀⠀⠀⠀⠀⠀⠀⠉⢻⣿⠭⠵⠲⠦⠤⠤⠤⣄⣙⣛⣛⡶⠦⣀⠀⢀⣼⣦⣀⣷⡇⠀⠀⡜⠀⠀⠀⢄⡈⠣⡈⡏⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢠⠇⠀⠙⠢⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣈⣹⡿⢥⡤⠂⠁⡿⠳⣴⣅⡀⠀⣤⠘⢷⣄⠙⡇⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢈⣳⢄⣀⣀⠀⠉⠀⠠⠤⠴⣒⠪⠭⠭⠵⠒⠒⢯⠁⠀⠀⣸⠁⡀⠀⢈⡙⢦⠘⣷⣄⠹⣍⠇⠀⠀
⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠙⠿⠓⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣨⣧⡴⢺⠃⡜⠀⣴⠿⠋⠈⢣⢸⡻⣆⡏⠀⠀⠀
⠀⠀⠀⠀⠀⢀⡴⠋⡄⠀⠀⠀⠉⠂⢀⣤⣤⣤⣤⣔⣲⠶⠾⠛⠋⠉⢹⠇⠘⣾⡤⠊⠉⠀⠀⠀⠈⣎⡇⠈⣷⠀⠀⠀
⠀⠀⠀⠀⢠⠏⠀⠀⢳⡀⠀⠀⠀⠀⠀⠀⠉⠉⠉⠀⠀⠀⠀⠀⠀⢠⡏⢀⡼⠋⠀⠀⣀⣀⣀⣀⡀⠈⣤⠾⠋⠀⠀⠀
⠀⠀⠀⢀⡞⠀⠀⠀⠀⢻⣤⣀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣇⣿⠀⠀⠀⠛⠛⠉⣉⠉⠉⢉⣿⠀⠀⠀⠀⠀
⠀⠀⣰⢿⠃⠀⠀⠀⠀⠀⠙⠻⢿⣶⣤⠀⠀⠀⠀⠀⠀⠀⠀⣀⡴⢾⡟⠹⣦⠀⣀⣴⣶⠿⢟⢋⡀⢹⡇⠀⠀⠀⠀⠀
⠀⢰⠏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠁⠀⠀⠀⠀⠀⠠⠶⠛⠉⢠⡟⠀⠀⣿⠚⠛⠯⡍⣉⣉⣩⢥⡾⣿⡀⠀⠀⠀⠀
⠀⡿⠀⠀⠀⠀⠀⠀⠠⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣰⠟⠀⠀⣠⠿⢾⣤⣀⡀⠀⠀⢀⣴⡇⢸⣷⠀⠀⠀⠀
⢸⡇⠀⠀⠀⠀⠀⠀⠀⠈⠓⠦⣀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡾⣁⣀⣠⣴⡇⠀⠀⠉⠉⠁⠀⠀⣾⠁⠀⠀⣿⣇⠀⠀⠀
⠘⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠙⢲⠶⠶⠶⠆⠨⢽⡯⢚⠋⢉⣰⠟⢦⣄⡀⢙⠿⣶⣤⣰⠏⠀⠀⠀⢾⣿⠀⠀⠀