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: 3765 @ 8333 @ 5726
Example Output: 17824

Example Input: 6597 @ 1596 # 358 # 9057 @ 993
Example Output: -229

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