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: 4428 # 2569 @ 338 # 967 @ 2206

SOLUTION: 3436

PROBLEM: 5640 @ 148 @ 7578 # 2373 # 3438 @ 4775 # 8187

SOLUTION: 4143

PROBLEM: 7177 # 3190 @ 17 # 6917 # 4457 @ 5140 # 4461 @ 7466 # 272

SOLUTION:
503