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: 581 # 2278 @ 452 # 5411 # 7564 @ 8148 # 2350 # 8956 # 4877

A: -22255
****
Q: 1737 # 3662 # 9496 @ 694

A: -10727
****
Q: 4148 # 6568 # 4654 # 7977 # 1873 @ 6694 @ 1882 @ 5627

A:
-2721
****