
    Given a list of estimated delivery times for different routes during peak traffic hours, calculate the total time span by adding the longest and shortest possible delivery durations to help fleet managers understand the full range of time they need to account for in their scheduling. The delivery times are provided in minutes as a list of integers, and the function should return a single integer representing the sum of the maximum and minimum delivery durations.
    

    
def big_sum(nums):
    """
    Given a list of estimated delivery times for different routes during peak traffic hours, calculate the total time span by adding the longest and shortest possible delivery durations to help fleet managers understand the full range of time they need to account for in their scheduling. The delivery times are provided in minutes as a list of integers, and the function should return a single integer representing the sum of the maximum and minimum delivery durations.
    

    """
def big_sum(nums):
    """
    Given a list of estimated delivery times for different routes during peak traffic hours, calculate the total time span by adding the longest and shortest possible delivery durations to help fleet managers understand the full range of time they need to account for in their scheduling. The delivery times are provided in minutes as a list of integers, and the function should return a single integer representing the sum of the maximum and minimum delivery durations.
    

    """
    sum = max(nums) + min(nums)
    return sum