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

Example Input: 6628 @ 7709 @ 528 @ 8813
Example Output: 23678

Example Input: 8711 @ 5210 # 6763 # 7959 # 1575
Example Output:
-2376