use std::fmt;

enum Cbw {
    Cbw20,
    Cbw40,
    Cbw40Below,
    Cbw80,
    Cbw160,
    Cbw80PB0 { secondary80: usize },
}

impl fmt::Display for Cbw {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let owned_suffix;
        let suffix = match self {
            Cbw::Cbw20 => "",
            Cbw::Cbw40 => "+",
            Cbw::Cbw40Below => "-",
            Cbw::Cbw80 => "V",
            Cbw::Cbw160 => "W",
            Cbw::Cbw80PB0 { secondary80 } => {
                owned_suffix = format!("{:?}", secondary80);
                &owned_suffix
            }
        };
        write!(f, "{}", suffix)
    }
}

fn main() {

}