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: 9566 # 6244 @ 3039 # 947 # 6321 @ 7732
Example Output: 6825

Example Input: 7021 # 2043 @ 7414 # 2632 @ 2939 @ 8718 @ 2731
Example Output: 24148

Example Input: 2755 # 5296 @ 9862 # 9725 @ 4974
Example Output:
2570