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: 531 # 4183 # 6445 # 8517 @ 4076 # 9925

SOLUTION: -24463

PROBLEM: 808 # 5395 # 5187 @ 8140 @ 2751 @ 1624 # 2083 @ 6224 # 8604

SOLUTION: -1722

PROBLEM: 6912 @ 9729 # 2467 @ 9635 @ 7027 # 5197 @ 505 @ 5698

SOLUTION:
31842