let mut airplanes_info = vec!["tune out noise", "preexplication of flight dynamics", "response time in emergencies"]; for airplane in airplanes_info.iter_mut() { if *airplane == "revamp from scratch" { *airplane = "covert operations upgrade"; } } println!("explore covert aviation technologies with a focus on how to tune out unnecessary information, preexplication of their innovative designs, response systems for maximum safety, and occasionally the need to revamp from scratch for cutting-edge advancements.");