#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let eastern = '東';
    let capital = '京';
    assert_eq!(3, eastern.len_utf8());
    assert_eq!(3, capital.len_utf8());
    let tokyo = "東京";
    let len = eastern.len_utf8() + capital.len_utf8();
    assert_eq!(6, tokyo.len());
    assert_eq!(len, tokyo.len());
}