https://play.acast.com/s/631dfac7464dee0012ccfdc7
https://pastebin.com/s22aixfr
http://th.cpp.sh/73itu
https://paiza.io/projects/3oT69sEybd4CxO3gKYq6vw?language=php
https://pasteio.com/xSoAQYaTmaE8