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

7211 # 614 @ 1584 # 4857 # 1495 # 1821 # 2219
-2211

6942 @ 1857 @ 1508 @ 3059 # 6727
6639

8128 # 3965 # 8720 @ 1985

-2572