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: 452 # 5631 # 8307 # 1886 @ 4631 @ 1695 @ 4411 # 769

SOLUTION: -5404

PROBLEM: 7686 @ 8753 @ 1402 # 3760 # 9121 @ 5705 @ 9002

SOLUTION: 19667

PROBLEM: 9012 # 8880 # 8803

SOLUTION:
-8671