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: 605 @ 9301 @ 640 # 9148 # 8015
Example Output: -6617

Example Input: 8916 # 6070 # 4406 # 1732 # 434 @ 143 # 9650 @ 8419 # 4599
Example Output: -9413

Example Input: 3342 @ 8916 # 6909 # 3627 # 798 # 7899 @ 5331 @ 4259 # 8830
Example Output:
-6215

