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: 2724 @ 8119 @ 1049 @ 9004

SOLUTION: 20896

PROBLEM: 995 @ 6856 @ 867 # 7415 # 9581

SOLUTION: -8278

PROBLEM: 9002 # 7580 @ 7712 @ 6959 # 9803 # 509 # 3503

SOLUTION:
2278