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: 523 # 5860 # 778

SOLUTION: -6115

PROBLEM: 8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422

SOLUTION: 4929

PROBLEM: 9747 # 8566 # 174 @ 2842 # 7863 # 8206 # 6077 @ 1604

SOLUTION:
-16693

