#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <stdio.h>
#include <cstring>
#include <queue>
#include <stack>
#include <functional>
#include <math.h>
#include <iomanip>
using namespace std;
#define Would
#define you
const int INF = 999999999;
const int MOD = 1e9 + 7;

int main() {
	long long a, b, mon;
	cin >> a >> b;
	for (long long i = a; i <= b; ++i) {
		if (i % 3 == 0) { cout << i << endl; }
		else {
			mon = i;
			while (mon) {
				if (mon % 10 == 3) {
					cout << i << endl;
					break;
				}
				mon /= 10;
			}
		}
	}
}