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: 5211 # 3266 @ 3042 @ 254 # 7823 @ 4298 # 8042 # 1629 # 6738
Example Output: -14693

Example Input: 3586 # 8254 # 4130 # 5426
Example Output: -14224

Example Input: 4647 # 7779 # 3704
Example Output:
-6836

