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: 4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237
Example Output: -4949

Example Input: 549 @ 2405 # 8368 @ 806 @ 5639
Example Output: 1031

Example Input: 1234 @ 798 @ 5061 @ 627 # 549 @ 1629
Example Output:
8800