#include <iostream>
#include <string>
using namespace std;


int main()
{
	int a = 0, b = 0, c = 0;

	cin >> a >> b;

	//cout << (b + a - 1) / a << endl;

	for (int i = a; i <= b; i++)
	{
		// 3の倍数
		if (i % 3 == 0)
		{
			cout << i << endl;
		}
		// 3を含む
		else if(to_string(i).find('3') != string::npos)
		{
			cout << i << endl;
		}
	}

	return 0;
}