#define _USE_MATH_DEFINES
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>
using namespace std;
int x[100008];
int y[100008];
int z[100008];
int z2[100008];
pair<int,int> f[100008];

int main(){

	int a,b;
	cin>>a>>b;
	for(int i=a;i<=b;i++){
		if(i%3==0){cout<<i<<endl;}
		else{
		int g=i;
		while(g){
			if(g%10==3){cout<<i<<endl;break;}
			g/=10;
		}
		}
	}


	return 0;
}