#include <stdio.h>
#include <string.h>

int main()
{
	long a, b;
	scanf("%d%d", &a, &b);

	char* find;

	for (long i = a; i <= b; i++)
	{
		char d[16];
		snprintf(d, 15, "%d", i);
		find = strchr(d, '3');
		if (find)
		{
			printf("%d\n", i);
			continue;
		}

		if (i % 3 == 0)
		{
			printf("%d\n", i);
		}
	}

	return 0;
}