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: 992 # 6304 @ 9489 # 6814 # 5448 @ 4565

SOLUTION: -3520

PROBLEM: 1566 @ 1639 # 814 # 5278 @ 1717 # 4304 # 6735 @ 1407

SOLUTION: -10802

PROBLEM: 4787 # 9858 @ 1688

SOLUTION:
-3383