Write a program that reads the contents of a charge account number file into a list. Each account number is a seven-digit number, such as 5658845. The program should then ask the user to enter a ...

An IBAN-compliant account number consists of: a two-letter country code taken from the ISO 3166-1 (e.g., KZ for Kazakhstan 🧎‍♀️, KY for Cayman Islands 🐊); two check digits used to perform the ...