fn main(){
	let mut s = String::new();
	std::io::stdin().read_line(&mut s).unwrap();
	let vec: Vec<&str> = s.trim().split(' ').collect();
	let a: i32 = vec[0].parse().unwrap();
	let b: i32 = vec[1].parse().unwrap();
	for i in a as usize..b as usize + 1 {
		if i % 3 == 0 || fb(i) {
			println!("{}", i);
		}
	}
}

fn fb(i: usize) -> bool{
	let mut t = i as i32;
	loop{
		if t % 10 == 3 {
			return true;
		}
		t /= 10;
		if t == 0 {
			return false;
		}
	}
}