import java.util.Scanner;

class no207{
	public static void main(String[] args) {
		Scanner stdIn=new Scanner(System.in);
		int a,b,i,t,s;
		a=stdIn.nextInt();
		b=stdIn.nextInt();
		for(i=a;i<=b;i++) {
			s=0;
			t=i;
			do {
				if(t%10==3) {
					s++;
					break;
				}
				t/=10;
			}while(t!=0);
			if(i%3==0) s++;
			if(s!=0) System.out.println(i);
		}
	}
}