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: 4449 @ 4019 @ 7637

SOLUTION: 16105

PROBLEM: 1040 # 6682 @ 4286 # 1132 # 705 @ 4048 # 9240

SOLUTION: -8385

PROBLEM: 3451 @ 9801 @ 4408 @ 9680 @ 4498 @ 1842

SOLUTION:
33680