#include <iostream>
#include <vector>
//#include <iomanip>

using namespace std;

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

	for (long long i = A; i <= B; i++)
	{
		if (i % 3 == 0)
		{
			cout << i << endl;
		}
		else
		{
			long long num = i;
			bool isContain3 = false;
			while (num > 0)
			{
				if (num % 10 == 3)
				{
					isContain3 = true;
					break;
				}

				num /= 10;
			}

			if (isContain3)
				cout << i << endl;
		}
	}

	return 0;
}