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: 6628 @ 7709 @ 528 @ 8813

Answer: 23678


Question: 4101 @ 2536 # 502

Answer: 6135


Question: 6504 # 2807 # 8880

Answer:
-5183