use std::io::stdin;

fn get_line() -> String {
    let mut line = String::new();
    stdin().read_line(&mut line).ok();
    line
}

fn main() {
    let line = get_line();
    let line: Vec<&str> = line.trim().split_whitespace().collect();
    let line: Vec<i32> = line.iter().map(|x| x.parse().unwrap()).collect();

    let a = line[0];
    let b = line[1];

    let mut results: Vec<i32> = Vec::new();

    for i in a..b + 1 {
        if i % 3 == 0 {
            results.push(i);
        } else {
            let str = i.to_string();
            let str = str.as_str();
            for j in str.chars() {
                if j == '3' {
                    results.push(i);
                    break;
                }
            }
        }
    }

    for i in results.iter() {
        println!("{}", i);
    }
}