#include <bits/stdc++.h>

using namespace std;

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



	return 0;
}