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: 2377 @ 4500 # 8359 @ 9946 # 9011

SOLUTION: -547

PROBLEM: 8625 @ 3267 # 2323 # 3569

SOLUTION: 6000

PROBLEM: 6166 @ 5811 @ 535 # 8490 # 9505 @ 4459 # 4252 @ 7939 # 3747

SOLUTION:
-1084