TASK DEFINITION: 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
PROBLEM: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392

SOLUTION: -3306

PROBLEM: 2065 @ 3769 @ 9915 # 6270 @ 3929 @ 5328 @ 6079 @ 5250 @ 843

SOLUTION: 30908

PROBLEM: 6107 @ 1282 @ 9801 @ 3769 # 7789 @ 8417

SOLUTION:
21587