as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
create a program that reads an input number and prints its reverse.
user
def reverse_num(num):
    rev_num = 0
    while num > 0:
        rev_num = (rev_num * 10) + (num % 10)
        num = num // 10
    return rev_num
assistant