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: 4460 @ 9143 # 6720 # 8379 @ 1636 # 6526
Example Output: -6386

Example Input: 1559 @ 760 # 5027 # 8544 @ 4623 # 9238
Example Output: -15867

Example Input: 6863 @ 7051 @ 8704 # 8353 # 3628 # 4873 # 5172 # 6257
Example Output:
-5665