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

3816 @ 8163 # 9273 @ 2037 @ 8051 @ 826
13620

9817 @ 5042 # 1724 @ 799 @ 685
14619

8681 @ 8273 @ 3574

20528