TASK DEFINITION: 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
PROBLEM: 1559 # 9981 # 6881

SOLUTION: -15303

PROBLEM: 3393 # 1959 # 4338 # 8197 @ 3993 # 7625 # 7892

SOLUTION: -22625

PROBLEM: 8777 @ 7509 @ 5246 @ 6144 # 3735 # 3412 # 6515 @ 1911 @ 7201

SOLUTION:
23126

