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: 3938 @ 6900 @ 1254 @ 25 # 7237 # 5576 @ 8865 # 8864 @ 1349

Answer: 654


Question: 4428 # 2569 @ 338 # 967 @ 2206

Answer: 3436


Question: 2901 # 7062 @ 6453 @ 7201 # 9640 @ 3570 @ 2305 # 4970 # 2939

Answer:
-2181