#include <iostream>
#include <string>
using namespace std;
int main()
{
	int a, b;
	string m;
	cin >> a >> b;
	for (int i = a; i <= b; i++)
	{
		if (i % 3 == 0) cout << i << endl;
		else
		{
			m = to_string(i);
			for (int j = 0; j < m.length(); j++)
			{
				if (m[j] == '3') 
				{
					cout << i << endl;
					break;
				}
			}
		}
	}

	return 0;
}