This problem is for you guys to demonstrate the usage of debugger. You are not required to submit any code to make this problem "Accepted". JUST download the codes we provided, and make them work in your development environment.
The task is simple: you are given 2 functions, and both of them will return the Greatest Common Divisor (GCD) of 2 given positive integers. You need to insert the break point to the codes, and explain how these codes work.
There are 2 positive integers, separated by a space, as the input.
Print the Greatest Common Divisor for both functions. You do not have to worry about the format.