#include<iostream>
#include <math.h>
#include <string>
using namespace std;

int main(){
	int a;
	int b;
	string str;
	cin >> a;
	cin >> b;
	for (int i = a; i <= b; i++){
		
		str = to_string(i);
		int loc = str.find("3", 0);
		if (i % 3 == 0){
			cout << i << endl;
		}else if (loc != string::npos){
			cout << i << endl;
		}
	}
	return 0;
}