Need Help With Creating a Circuit That Alternates Outputs

NebulaMagePlays

Official Terrarian
I am not 100% sure if this is even possible in Terraria, but I want to make a circuit activated by a single input alternating between 2 outputs. In other words, I want to make an arena that I can open and close with actuators and 2 announcement boxes telling me if it is opened or closed. I am more of a visual learner, so a diagram would be nice.
 
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