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
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Question: 6904 # 1007 @ 9690 @ 9967 @ 9620 @ 4765

Answer: 39939


Question: 4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237

Answer: -4949


Question: 3552 # 7725 @ 8834 # 638 @ 9197 # 8548 @ 7442

Answer:
12114