A key generator

Question

Take for example I have a software which asks for recovery key.It can be any number between 99999 and 10000.I want a program which checks all the numbers from 99999-10000 and find the correct key.

Answer 1

Breakdown:
* Take the user input
2)
* Compare the input with the numbers 10000-99999 using a loop
* Repeat step in 2), until the program finds the number