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: 463 @ 7844 # 9816
Example Output: -1509

Example Input: 5604 # 514 # 150 @ 4349 @ 958 # 6247 # 8710
Example Output: -4710

Example Input: 5617 # 3824 @ 1238 @ 2558
Example Output:
5589