import java.util.Scanner;

class main{
    public static void main(String args[]){

	Scanner scan = new Scanner(System.in);

	int A = scan.nextInt();
	int B = scan.nextInt();

	for(int i = A; i <= B; i++){
	    if(i % 3 == 0){
		System.out.println(i);
	    }
	    else{
		int num = i;

		while(true){
		    if(num % 10 == 3){
			num = num / 10;
			System.out.println(i);
			break;
		    }
		    else{
			num = num / 10;
			if(num == 0){
			    break;
			}
		    }
		    
		    
		}
		
	    }
	}
	
    }
}