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: 8571 # 5985 @ 8912
Example Output: 11498

Example Input: 722 # 9533 @ 3199 @ 4825 @ 817
Example Output: 30

Example Input: 2303 @ 236 # 6960 @ 2023 # 9349
Example Output:
-11747