#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <vector>
#include <queue>
#include <string>
#include <functional>
#include <iostream>


using namespace std;
 
//namaega184 
 
int main(){
	
	int a,b;scanf("%d%d",&a,&b);
	int ans=0;
	for(int i=a;i<=b;i++){int c=i,sum=0;while(c){if(c%10==3){ans++;printf("%d\n",i);goto end;}sum+=c%10;c/=10;}if(sum%3==0)printf("%d\n",i);end:;}
	  
	return 0;
}