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

3970 # 8486 # 9402 # 8030 @ 4724 @ 8858
-8366

4839 # 9558 @ 1236 # 8758 # 3209
-15450

9194 # 7592 @ 362 @ 9727

11691