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: 8161 @ 9287 # 6233
Example Output: 11215

Example Input: 1446 @ 5354 # 6450 # 2821 @ 2258
Example Output: -213

Example Input: 3873 # 9831 @ 1585 @ 603 # 7278 # 5523 @ 5491 @ 8605
Example Output:
-2475