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: 9540 # 9387 # 8692 @ 5008 # 4886 @ 9427 @ 3816
Example Output: 4826

Example Input: 9930 # 7864 @ 6797 # 6092 @ 1146 @ 1388 # 8545 # 9163
Example Output: -12403

Example Input: 6571 # 6605 # 7397 # 1536 # 2560 # 4246 @ 796 @ 7856 # 6387
Example Output:
-13508