#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream> 
#include<map>
#include <iomanip>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
using namespace std;
#define MAX_MOD 1000000007
#define REP(i,n) for(long long i = 0;i < n;++i)
#define LONG_INF 100000000000000
int main() {
	long long a, b;
	cin >> a >> b;
	for (int i = a;i <= b;++i) {
		if (i % 3 == 0) {
			cout << i << endl;
		}
		else {
			int pow = i;
			while (pow != 0) {
				if (pow % 10 == 3) {
					cout << i << endl;
					goto ok;
				}
				pow /= 10;
			}
		ok:;
		}
	}
	return 0;
}