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
--------
Question: 7720 @ 5171 # 6139 @ 480

Answer: 7232


Question: 6628 @ 7709 @ 528 @ 8813

Answer: 23678


Question: 612 # 307 # 7909 # 5429 # 1909 # 7413 # 5217

Answer:
-27572