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: 290 @ 5200 # 3274 # 8548
Example Output: -6332

Example Input: 5604 # 514 # 150 @ 4349 @ 958 # 6247 # 8710
Example Output: -4710

Example Input: 7588 # 6187 @ 9311 @ 1522 @ 8870
Example Output:
21104

