/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		
		for(int i = A; i <= B;i++)
		{
			if(i % 3 == 0)
			{
				System.out.println(i);
				continue;
			}
			
			int j = i;
			while(0 < j)
			{
				if(j % 10 == 3)
					System.out.println(i);
				j /= 10;
			}
		}
	}
}