use std::io::{self, BufRead};

fn get_lines() -> Vec<String> {
    let stdin = io::stdin();
    let lines: Vec<String> = stdin.lock().lines().map(|l| l.unwrap()).collect();
    return lines;
}

fn is_nabeatsu(n :i32) -> bool {
    return n % 3 == 0 || n.to_string().chars().any(|x| x == '3');
}

fn main(){
    let s = &get_lines()[0];
    let n: Vec<i32> = s.split(' ').map(|x| x.parse().unwrap()).collect();
    let (a, b) = (n[0], n[1]);
    for i in a..b {
        if is_nabeatsu(i) {
            println!("{}", i);
        }
    }
}