use std::borrow::Cow;

enum FizzBuzzResult {
    Fizz,
    Buzz,
    FizzBuzz,
    Other(i32),
}

fn main() {
    use self::FizzBuzzResult::*;

    for i in 1..=100 {
        let output = match fizzbuzz(i) {
            Fizz => Cow::from("Fizz"),
            Buzz => Cow::from("Buzz"),
            FizzBuzz => Cow::from("FizzBuzz"),
            Other(i) => Cow::from(i.to_string()),
        };

        println!("{}", output);
    }
}

fn fizzbuzz(i: i32) -> FizzBuzzResult {
    match i % 15 {
        3 | 6 | 9 | 12 => FizzBuzzResult::Fizz,
        5 | 10 => FizzBuzzResult::Buzz,
        0 => FizzBuzzResult::FizzBuzz,
        _ => FizzBuzzResult::Other(i),
    }
}