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

877 # 7761 # 7154 # 4993 # 2712
-21743

1737 # 3662 # 9496 @ 694
-10727

1744 @ 5984 @ 4614 @ 2492 @ 4282 @ 8495 # 6314

21297