import java.util.Scanner;

public class No207 {
	public static void main(String[]args) {
		Scanner sc = new Scanner(System.in);
		int a,b;
		do {
			a=sc.nextInt();
			b=sc.nextInt();
		}while(!(b-a>=0 && b-a<=100));

		for(int i=a;i<b+1;i++) {
			if(i%3==0) {
				System.out.println(i);
			}
			else {
			int c = i;
			for(int j=10;j<b+1;j=j*10) {

				int d = c%j;
				 c = c/10;
				if(d==3 || c==3) {
					System.out.println(i);
					break;
				}

			}
			}
		}



	}

}