You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def max_subarray_sum(arr):
    # Keep track of the current sum and the maximum sum 
    current_sum = 0
    max_sum = float('-inf')
    
    # Iterate over the array and update the current/max sum
    for num in arr:
        current_sum += num
        max_sum = max(max_sum, current_sum)
        current_sum = max(current_sum, 0)
        
    return max_sum

if __name__ == '__main__':
    arr = [2, -5, 4, -2, 7, -1]
    result = max_subarray_sum(arr)
    print(result)
user
9
assistant