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: 2598 # 1930 @ 3599

SOLUTION: 4267

PROBLEM: 9074 # 3474 @ 2553 @ 8125 # 7981 # 1438 @ 9668

SOLUTION: 16527

PROBLEM: 8079 @ 5498 @ 5803 @ 711 # 9604 @ 7533

SOLUTION:
18020