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

int main() {
	int a, b;
	cin >> a >> b;
	
	for (int i = a; i <= b; i++)
	{
		if (i % 3 == 0)
		{
			cout << i << endl;
			continue;
		}
		int temp = i;
		do
		{
			if (temp % 10 == 3)
			{
				cout << i << endl;
				break;
			}
		} while (temp = temp / 10);
	}

	return 0;
}