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: 7252 # 8553 # 4853 @ 6748 # 3750
Example Output: -3156

Example Input: 3303 @ 1775 # 9738 @ 1433 @ 5484 @ 2221
Example Output: 4478

Example Input: 6409 # 1586 @ 4265 # 4876 # 8825 # 6724
Example Output:
-11337