1  fn main() {
 2      let string1 = String::from("long string is long");
 3  
 4      {
 5          let string2 = String::from("xyz");
 6          let result = longest(string1.as_str(), string2.as_str());
 7          println!("The longest string is {result}");
 8      }
 9  }
10  
11  fn longest<'a>(x: &str, y: &str) -> &'a str {
12      let result = String::from("really long string");
13      result.as_str()
14  }