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: 9255 @ 7467 @ 4436 @ 126 # 3569 # 8239

SOLUTION: 9476

PROBLEM: 1948 @ 7201 @ 611 # 9763 # 2998 # 5097 # 9302 # 3012 # 8272

SOLUTION: -28684

PROBLEM: 7889 @ 2057 @ 4830 @ 7278 # 476 # 1209

SOLUTION:
20369