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: 8717 @ 6135 # 2706

SOLUTION: 12146

PROBLEM: 9818 # 7303 @ 1663 @ 5760 @ 4607

SOLUTION:
14545

