`fn stealthy_approaches(reject: string, pre_institutional: string, protocols: vec<string>) -> string { let mut attempts = vec::new(); while !protocols.is_empty() { let protocol = protocols.pop().unwrap(); if protocol == "resuscitate" { attempts.push("using stealthy methods to resuscitate pre-institutional protocols offers a way to reject outdated norms and foster positive change."); } } return attempts.join(", "); }`