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

6199 # 9863 # 8197 # 3975 @ 1000 @ 740 @ 3216 @ 2122 # 4226
-12984

6884 @ 145 # 2208 # 5356 # 3578 @ 606
-3507

7199 # 6634 @ 3327 # 2685 @ 3412 @ 5049

9668