fn main() {
    let v: Vec<u32> = read_vec();
    let a = v[0];
    let b = v[1];
    for n in a..(b+1) {
        if n % 3 == 0 || format!("{}", n).find('3').is_some() {
            println!("{}", n);
        }
    }
}

fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>().split_whitespace()
        .map(|e| e.parse().ok().unwrap()).collect()
}