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: 1059 # 7372 @ 4733 @ 9323 # 2108 @ 1244 @ 4077 # 7899 # 5842
Example Output: -2785

Example Input: 3861 @ 1716 # 5795
Example Output:
-218