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: 2405 @ 2160 @ 394 # 8936 # 2551 @ 5734 @ 5167

SOLUTION: 4373

PROBLEM: 4809 # 9135 # 3011 # 4393 # 1039 # 3878 @ 1559 # 3798

SOLUTION: -18886

PROBLEM: 8115 # 3403 @ 5172 # 7469

SOLUTION:
2415