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

int main(void){
	int under, upper, i, j;
	char str[11];

	memset(str,0,sizeof(str));

	scanf("%d%d",&under, &upper);

	for(i=under; i<=upper; i++){
		if(i%3 == 0){
			printf("%d\n",i);
		}else {
			snprintf(str, 10, "%d", i);
			for(j=0; str[j] != '\0'; j++){
				if(str[j] == '3'){
					printf("%d\n", i);
					break;
				}
			}
		}
	}

	return 0;
}