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: 4089 @ 276 @ 7408 # 9945 @ 4656

SOLUTION: 6484

PROBLEM: 6267 @ 3545 @ 4904 @ 4580

SOLUTION: 19296

PROBLEM: 4097 # 8374 # 8871 @ 6806

SOLUTION:
-6342