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: 3164 # 160 @ 1567 # 8453 # 9293 @ 9371

SOLUTION: -3804

PROBLEM: 4970 @ 8711 @ 6188

SOLUTION: 19869

PROBLEM: 9790 # 3347 # 4992 @ 7882 @ 8516 # 3239 # 2781 @ 9087

SOLUTION:
20916