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: 7539 # 9710 # 800 # 5609

SOLUTION: -8580

PROBLEM: 4737 # 8536 @ 5633 # 1731 @ 3807 # 520 @ 1622

SOLUTION: 5012

PROBLEM: 8183 @ 6318 @ 672 @ 8970 @ 9981 # 3163

SOLUTION:
30961