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

3438 # 3865 # 956 # 3020 @ 2696
-1707

2020 @ 862 # 5780
-2898

6336 @ 4087 # 4035 # 5250 @ 8654 # 4463 @ 621

5950