https://advance.washington.edu/liy/sites/default/files/2023-02/sala2nam.pdf
https://advance.washington.edu/liy/sites/default/files/2023-02/sala3baro.pdf
https://advance.washington.edu/liy/sites/default/files/2023-02/bala4hol.pdf
https://advance.washington.edu/liy/sites/default/files/2023-02/lala5tala.pdf
https://advance.washington.edu/liy/sites/default/files/2023-02/tan2vir.pdf
https://pastebin.com/3rAv5PFx
https://ideone.com/xqYr2W
https://pasteio.com/xQr1YFwgM9mL
https://paiza.io/projects/vpza70VKUbU618xOrgVL-A?language=php
https://ide.geeksforgeeks.org/online-cpp-compiler/0c35c0b4-2de6-4132-941f-853c809c24ae