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: 9682 @ 9507 # 7565 # 4252
Example Output: 7372

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

Example Input: 2580 # 1401 @ 2627 @ 3443 @ 351 @ 9338
Example Output:
16938