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: 8625 @ 3267 # 2323 # 3569
Example Output: 6000

Example Input: 6915 @ 3564 # 9197 # 9440 # 1112 @ 382 @ 9681 # 6512 # 9658
Example Output: -15377

Example Input: 7882 @ 1594 # 4644 @ 206
Example Output:
5038