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: 9007 @ 6876 # 2672 # 3947 @ 6822 @ 806 @ 4508 @ 5112
Example Output: 26512

Example Input: 610 # 7967 # 8700 # 5966 @ 4310 @ 9963 # 8525
Example Output: -16275

Example Input: 2040 # 3481 # 7847 # 8853 # 2887
Example Output:
-21028