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: 7211 # 614 @ 1584 # 4857 # 1495 # 1821 # 2219

SOLUTION: -2211

PROBLEM: 2020 @ 862 # 5780

SOLUTION: -2898

PROBLEM: 4793 # 9645 @ 2286 # 5304 @ 9361 # 4834 # 5898 @ 5231

SOLUTION:
-4010