use std::io::{self, Read};
use std::collections::HashMap;

fn read_stdin() -> Vec<String> {
    let mut buffer = String::new();
    io::stdin().read_to_string(&mut buffer).ok();
    buffer.trim().split('\n').map(|s| s.to_string()).collect()
}

fn main() {
    let input = read_stdin();
    let splitted: Vec<u64> = input[0].split(' ').map(|s| s.parse::<u64>().unwrap()).collect();
    let a = &splitted[0];
    let b = &splitted[1];

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