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: 5263 @ 8483 # 8668 @ 4802 # 7388 @ 2501 @ 3137 # 8399

SOLUTION: -269

PROBLEM: 2738 # 5562 @ 4529 @ 5438 @ 1799

SOLUTION: 8942

PROBLEM: 4143 @ 5469 @ 8704

SOLUTION:
18316