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

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

	char str[10];
	for(; a<=b; a++) {
		sprintf(str,"%d",a);
		if(a % 3 == 0) 
			printf("%d\n", a);

		else if(strstr(str,"3") != NULL)
			printf("%d\n", a);

	}

	return 0;
}