#include <stdio.h>

int main(void){
	int i, j;
	int A, B;
	char str[10];
	int counter = 0;
	
	scanf("%d%d", &A,&B);
	
	for(i = A; i <= B; i++){
		sprintf(str, "%d", i);
		
		if(i % 3 == 0){
			printf("%d\n", i);
		}else{
			for(j = 0; str[j] != '\0'; j++){
				if(str[j] == '3') counter++;
			}
			if(counter > 0) printf("%d\n", i);
			counter = 0;
		}
	}
	
	return 0;
}