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: 9682 @ 9507 # 7565 # 4252

SOLUTION: 7372

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

SOLUTION: 18020

PROBLEM: 3229 # 4001 @ 2950 # 3024 # 873 @ 4599 # 2011

SOLUTION:
869