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: 4400 @ 9261 @ 3016
Example Output: 16677

Example Input: 9336 # 483 # 2765
Example Output: 6088

Example Input: 8422 @ 5670 # 5825 @ 3613
Example Output:
11880