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: 1365 # 3902 @ 5909
Example Output: 3372

Example Input: 4565 @ 7065 # 5397
Example Output: 6233

Example Input: 2893 # 3957 # 1912
Example Output:
-2976