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

Q: 877 # 7761 # 7154 # 4993 # 2712

A: -21743
****
Q: 4839 # 9558 @ 1236 # 8758 # 3209

A: -15450
****
Q: 385 @ 501 @ 4714 @ 9865 # 5788 @ 4191 @ 3658

A:
17526
****