#include <iostream>
#include <string>

using namespace std;
typedef long long int lint;

bool threeQ(lint n) {

	while (n != 0) {
		if (n % 10 == 3) return true;
		n /= 10;
	}

	return false;
}

int main()
{
	lint A, B;
	cin >> A >> B;

	for (lint i = A; i <= B; i++)
		if (i % 3 == 0 || threeQ(i))
			cout << i << endl;

	return 0;
}