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: 1559 # 9981 # 6881

A: -15303
****
Q: 3894 # 3818 # 2119 # 6333

A: -8376
****
Q: 4037 # 2767 # 7596

A:
-6326
****