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: 123 # 6452 # 5554 # 9261 @ 6646
Example Output: -14498

Example Input: 5956 # 1397 @ 8694 # 3593 # 1578
Example Output: 8082

Example Input: 3417 @ 2279 @ 74
Example Output:
5770