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

8899 # 4509 # 9411 # 7373
-12394

497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392
-3306

3327 # 1675 @ 3519 @ 5865 # 24 # 911 # 7888 # 4418 # 5219

-7424