#include <stdio.h>

int main(void)
{
	unsigned long a,b,tmp;
	scanf("%lu %lu",&a,&b);
	for (;a<=b;a++) {
		if (a%3==0) {
			printf("%lu\n",a);
			continue;
		}
		for (tmp=a;tmp>0;tmp/=10) {
			if (tmp%10==3) {
				printf("%lu\n",a);
				break;
			}
		}
	}


	return 0;
}