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: 8079 @ 5498 @ 5803 @ 711 # 9604 @ 7533
Example Output: 18020

Example Input: 8129 # 5764 @ 7961 # 2052 @ 6379
Example Output: 14653

Example Input: 4037 # 2767 # 7596
Example Output:
-6326

