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: 7579 @ 2801 # 7154 @ 4185 # 825 @ 4256 @ 9614
Example Output: 20456

Example Input: 4558 @ 6469 @ 1154
Example Output: 12181

Example Input: 6808 # 5493 # 9355 @ 2236 # 9633 # 1088 @ 6859
Example Output:
-9666