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: 6277 # 2029 # 4158 @ 5412 # 6845 # 6694 @ 5432
Example Output: -2605

Example Input: 4945 # 9916 # 656 @ 6515 # 5000 @ 6599 # 9652
Example Output: -7165

Example Input: 6432 @ 6640 # 5154 # 8162 @ 1655 # 9693 @ 6146 # 3792 # 642
Example Output:
-6570

