import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Question207 {
	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		int a, b;
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);

		try{
			String buf = br.readLine();
			String[] tmp = buf.split(" ");
			a = Integer.parseInt(tmp[0]);
			b = Integer.parseInt(tmp[1]);
		}catch(Exception e){
			System.out.println(e);
			return;
		}

		for(int i = a; i <= b; i++){
			if(i % 3 == 0) System.out.println(i);
			else{
				for(int k = i; k > 0; k /= 10){
					if(k % 10 == 3){
						System.out.println(i);
						break;
					}
				}
			}
		}
	}
}