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: 6960 # 4418 @ 5450 @ 8475
Example Output: 16467

Example Input: 3765 @ 8333 @ 5726
Example Output: 17824

Example Input: 3408 # 3764 @ 8517 @ 3202 # 7392 @ 5526 # 5537 # 7414 # 1955
Example Output:
-5409