import java.util.Scanner;

public class test2 {

	public static void main(String[] args) {

		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int m = in.nextInt();

		for(;n <= m; n++) {
			if(n % 3 == 0) {
				System.out.println(n);
				continue;
			}

			//　なんだかなぁ
			int tmp = n;
			while(tmp > 0) {
				if(tmp % 10 == 3) {
					System.out.println(n);
					break;
				}
				tmp /= 10;
			}
		}

	}

}