In mathematics, the Fibonacci numbers are the series of numbers that exhibit the followi...

In mathematics, the Fibonacci numbers are the series of numbers that exhibit the following pattern:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, …

In mathematical notation the sequence F_n of Fibonacci numbers is defined by the following recurrence relation:

With the initial values of F₀ = 0 and F₁ = 1. Thus, the next number in the series is the sum of the previous two numbers. Write a program that asks the user for a positive integer N and generates the Nth Fibonacci number. Your main function should handle user input and pass that data to a function called Fib that takes an integer value N as input and a reference parameter that is assigned the Nth Fibonacci number.