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