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: 6884 @ 145 # 2208 # 5356 # 3578 @ 606

SOLUTION: -3507

PROBLEM: 5569 # 5161 @ 9240 @ 391 @ 2756 # 7345 @ 4533

SOLUTION: 9983

PROBLEM: 2461 @ 3955 @ 1177 @ 3939 # 7213 @ 3160 # 5929 # 9197

SOLUTION:
-7647