https://colab.research.google.com/drive/1_OF82PedIofKdUCeesXN8A32Oynqy6v4
https://colab.research.google.com/drive/1okqoYYeq26ESKT2QnS-4cW6SMWQJQPoh
https://colab.research.google.com/drive/1BVGTk63OSLTLXPS-QTJOE8NwCjbgNWis
https://colab.research.google.com/drive/1I4Exi0y9H6mqv1gqL0fwwH1RBZooiPei
https://pastebin.com/qMzXUSSY
http://cpp.sh/22ln7
https://pastebin.com/jvQBb8Ls
http://cpp.sh/2g5bo
https://dotnetfiddle.net/jNtoUm
https://pastebin.com/1PnStj3a
http://cpp.sh/5h2ka
https://yamcode.com/mvwajsawjv
https://pastebin.com/83AaPmJg
http://cpp.sh/5iqfr
https://paiza.io/projects/bdFslSiKNWIABMN3hLRTRQ?language=php
https://ideone.com/iYlrVm
https://pasteio.com/x7o2L06pmfJ3
https://controlc.com/ff09f012
https://paste2.org/M42WDyH6
https://ide.geeksforgeeks.org/a96841d8-f439-4f71-8fcc-b733cd850e24