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

Example Input: 440 @ 5472 # 6900 # 3389
Example Output: -4377

Example Input: 6726 # 1567 @ 8621 @ 367 # 8782
Example Output:
5365