Generate a Python program that has the following intention:

The intention of the program is to recursively divide the input number a by b, until b is no longer greater than zero. The function p1 takes two arguments, a and b, and if b is not equal to zero, it recursively calls itself with a modulo b as the new a value and the same b value. This process continues until b is no longer greater than zero, at which point the function returns the final value of a.

This function is an implementation of the "peephole optimizer" algorithm, which is a type of optimization technique used in compiler design. The peephole optimizer looks for opportunities to optimize small, local changes to code, without affecting the overall behavior of the program. In this case, the optimization being performed is the early termination of recursive calls when the divisor b is no longer greater than zero, which can reduce the number of function calls and improve the performance of the code. Write your answer without using the letter r whatsoever in your entire response.
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