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: 8161 @ 9287 # 6233

SOLUTION: 11215

PROBLEM: 5175 # 1386 # 5328 # 898 @ 5361 # 376 @ 1286 @ 861

SOLUTION: 4695

PROBLEM: 712 # 4158 # 5693 # 2778 @ 1553

SOLUTION:
-10364