#include <iostream>
using namespace std;

/*int digit_length(int num)
{
	int count = 0;
	while (num)
	{
		num = num / 10;
	}
	return count;
}

int* digit_slice(int num) 
{
	int mod = 0;
	int *parts = NULL;
	parts = new int[digit_length(num)];
	int i = 0;
	while (num >= 1)
	{
		mod = num % 10;
	}
}*/

int main()
{
	int A, B,i,j,N,n;
	cin >> A >> B;
	n = 1;
	string s;
	int digit;

	for (i = 0; i <= B - A; i++)
	{

		N = i + A;
		if (N % 3 == 0)
		{
			cout <<N << "\n";
		}
		else
		{
			while (N)
			{
				n = N % 10;
				if (n == 3) {
					cout << i + A << "\n";
					break;
				}
				N = N / 10;
			}
		}
			
	}
	return 0;
}