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: 519 @ 9686 @ 3145 # 9320

SOLUTION: 4030

PROBLEM: 6960 # 4418 @ 5450 @ 8475

SOLUTION: 16467

PROBLEM: 4470 @ 7285 # 4583 @ 9451 # 3236 # 3108 # 2875

SOLUTION:
7404

