#include <stdio.h>

int main()
{
	enum STR_LENGTH
	{
		LIMIT_STR = 11,
	};

	int n = 0;
	int x = 0;
	scanf("%d", &n);
	scanf("%d", &x);

	for (int i = n;i <= x;i++)
	{
		char str[LIMIT_STR] = "";
		snprintf(str, sizeof(str), "%d", i);

		if (i % 3 == 0)
		{
			printf("%d\n", i);
		}
		else
		{
			for (int j = 0;str[j] != '\0';j++)
			{
				if (str[j] == '3')
				{
					printf("%s\n", str);
					break;
				}
			}
		}
	}

	return 0;
}