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
write a function that takes two integers,m and n, and returns the sum of all the numbers between them
user
def sum_range(m, n):
    total = 0
    for i in range(m, n + 1):
        total += i 
    return total
assistant