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

[EX Q]: 1559 # 9981 # 6881
[EX A]: -15303

[EX Q]: 5425 @ 6980 # 4301 @ 4410 # 7405 # 552 @ 4556 # 8531 # 4935
[EX A]: -4353

[EX Q]: 7833 # 167 @ 1908 # 5075 # 4731 # 457
[EX A]:
-689