In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Example Input: 2821 @ 5327 # 3350 # 3607 @ 7010 @ 6824 # 9975 # 38
Example Output: 5012

Example Input: 3556 # 1722 @ 9362 # 7616 # 7893
Example Output: -4313

Example Input: 4492 # 6058 @ 53 # 9643 # 9898 @ 2988 # 684 @ 1473 @ 8563
Example Output:
-8714