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: 5425 @ 6980 # 4301 @ 4410 # 7405 # 552 @ 4556 # 8531 # 4935

SOLUTION: -4353

PROBLEM: 7065 # 7713 # 7473 # 664 # 8030

SOLUTION: -16815

PROBLEM: 9794 @ 7209 @ 2800 # 5923 # 6485 # 8878 @ 6168 @ 3865 @ 1597

SOLUTION:
10147