Write a Python program that:

$$ Asks the user a scale factor a and a common ratio r;

$$ Your program inform the user if the GP informed converges to a sum regardless of its number of elements:

$$ If the GP converges to a sum regardless of the number of elements, your program should compute the sum of infinite elements;

$$ Otherwise, your program should ask the number of elements n$,$ and compute the sum of all elements;