#include<stdio.h>
#include<stdlib.h>

int main(void)
{
	long int a,b;
	scanf("%ld %ld",&a,&b);
	long int n=b-a+1;

	for(long int i=a;i<=b;i++) {
		if(i%3==0){
			printf("%ld\n",i);
		} else if(i%3!=0) {
		char str[11];
		snprintf(str,11,"%d",i);
		for(int j=0;j<10;j++){
			if(str[j]=='3'){
				printf("%ld\n",i);
				break;
			}
		}
		}
	}
	return 0;
}