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: 1774 # 6033 # 3757 @ 3570 @ 6463 # 5537
Example Output: -3520

Example Input: 4100 @ 4500 @ 5166 @ 7442 @ 3258
Example Output: 24466

Example Input: 4900 # 7450 # 73
Example Output:
-2623

