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: 5347 # 326 # 6112 # 4655 @ 2124

A: -3622
****
Q: 1466 # 292 @ 6352 @ 4089

A:
11615
****