use std::io;

fn main() {
    let mut input = String::new();
    io::stdin().read_line(&mut input).unwrap();
    
    let mut input = input.trim().split_whitespace();
    let a: u32 = input.next().unwrap().parse().unwrap();
    let b: u32 = input.next().unwrap().parse().unwrap();

    for i in a..(b + 1) {
        if i % 3 == 0 || is_including_3(i) {
            println!("{}", i);
        }
    }

}
fn is_including_3(num: u32) -> bool {
    let mut n = num;

    loop {
        if n % 10 == 3 {
            return true;
        }
        else if n == 0 {
            return false;
        }
        else {
            n /= 10;
        }
    }
}