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<i64> = line.iter().map(|x| x.parse().unwrap()).collect();

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

    let mut results: Vec<i64> = Vec::new();

    for i in a..b + 1 {
        if i % 3 == 0 {
            results.push(i);
            continue;
        }
        let mut c = i;
        loop {
            if c < 10 {
                break;
            }
            if i % 10 == 3 {
                results.push(i);
            }
            if i / 10 == 3 {
                results.push(i);
            }
            c = c / 10;
        }
    }

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