#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::hash::{Hash, Hasher};
pub struct CaseInsensitiveString(String);
impl Hash for CaseInsensitiveString {
    fn hash<H: Hasher>(&self, state: &mut H) {
        for c in self.0.as_bytes() {
            c.to_ascii_lowercase().hash(state)
        }
    }
}
fn main() {}