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: 4565 @ 7065 # 5397
Example Output: 6233

Example Input: 4688 # 4301 # 9301 # 7246 # 6377 @ 8027 @ 425 @ 3557
Example Output: -10528

Example Input: 6193 # 6226 # 7760 # 8318 # 1877 # 1429 @ 8766 # 2741
Example Output:
-13392