#include<stdio.h>
int main(void)
{
	int one, two, tmp,tmp2;
	scanf("%d", &one);
	scanf("%d", &two);
	for (tmp = one; tmp <= two; tmp++)
	{
		if (tmp % 3 == 0){
			printf("%d\n", tmp);
		}
		
		else{
			tmp2 = tmp;
			while (tmp2> 0){
				if (tmp2 % 10 == 3){
					printf("%d\n", tmp);
					break;
				}
				tmp2 /= 10;
			}
		}
	}
	return 0;
}