# include <iostream>
# include <algorithm>
# include <vector>
# include <string>
# include <set>
# include <map>
# include <cmath>
# include <iomanip>
# include <functional>
# include <utility>
# include <stack>
# include <queue>
# include <list>
using namespace std;
using LL = long long;
constexpr int MOD = 1000000000 + 7;
//足し算してオーバーフローで死なないように確認しようね
constexpr int INF = 1000000000;
const double PI = acos(-1);

int main() {
	LL a, b;
	cin >> a >> b;
	for (int i = a; i <= b; i++) {
		if (i % 3 == 0) {
			cout << i << endl;
		}
		else {
			int num = i;
			while (num > 1) {
				if (num % 10 == 3) {
					cout << i << endl;
					break;
				}
				num /= 10;
			}
		}
	}
}