#include "bits/stdc++.h"
using namespace std;

int main() {
	int A, B;
	cin >> A >> B;
	for (int i = A; i <= B; i++) {
		bool check = false;
		if (i % 3 == 0) check = true;
		int x = i;
		while (x != 0) {
			if (x % 10 == 3) check = true;
			x /= 10;
		}
		if (check) cout << i << endl;
	}
}