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: 605 @ 9301 @ 640 # 9148 # 8015
Example Output: -6617

Example Input: 9835 @ 3285 # 8713 # 3066
Example Output: 1341

Example Input: 1328 # 3382 @ 7893 # 3801 @ 7743 # 2018 # 6016 @ 1834 # 9916
Example Output:
-6335