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

3556 # 1722 @ 9362 # 7616 # 7893
-4313

3347 # 2950 @ 6671 @ 4670 # 7283
4455

4807 # 7438 # 438 @ 3198 # 2645 @ 9535 # 376 # 5694

949