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: 2989 # 6833 # 4298 @ 8863 # 8408

SOLUTION: -7687

PROBLEM: 6610 @ 7803 @ 8640

SOLUTION:
23053