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: 281 @ 7793 @ 5184 # 2962 @ 4511
Example Output: 14807

Example Input: 6348 # 2614 @ 3559 @ 9670 # 1137 # 9684
Example Output: 6142

Example Input: 1102 # 4989 # 9473 # 326 # 953 @ 6490 # 9701 @ 8677 @ 2461
Example Output:
-6712