
    Write a function that analyzes vehicle diagnostic data to determine the sum of the most extreme operating conditions by adding the highest and lowest sensor readings from a collection of performance metrics. This calculation helps identify potential maintenance needs by understanding the full range of stress the vehicle experiences during operation.
    

    
def big_sum(nums):
    """
    Write a function that analyzes vehicle diagnostic data to determine the sum of the most extreme operating conditions by adding the highest and lowest sensor readings from a collection of performance metrics. This calculation helps identify potential maintenance needs by understanding the full range of stress the vehicle experiences during operation.
    

    """
def big_sum(nums):
    """
    Write a function that analyzes vehicle diagnostic data to determine the sum of the most extreme operating conditions by adding the highest and lowest sensor readings from a collection of performance metrics. This calculation helps identify potential maintenance needs by understanding the full range of stress the vehicle experiences during operation.
    

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