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: 1278 @ 4628 @ 2357 @ 3694 @ 5775 @ 8542 # 793
Example Output: 25481

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

Example Input: 386 @ 3021 # 869 # 4005 @ 5920 @ 2280 # 9174
Example Output:
-2441