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: 1365 # 3902 @ 5909
Example Output: 3372

Example Input: 8932 # 2337 @ 825 # 8463 @ 528
Example Output: -515

Example Input: 7510 # 6218 @ 3637 # 8853 # 9139
Example Output:
-13063