//C++14 template　　AOJ compare:
#include<bits/stdc++.h>
#include<cstdio>
using namespace std;
 
typedef long long lint;
typedef long double ldouble;
typedef vector<int> vint;
typedef vector<vint> lvint;
typedef vector<double> vdouble; 
 
#define REP(a,b,c) for(a=b;a<c;a++)
#define rep(x,y,z) for(x=y:x=z;x--)
#define PI 3.14159265359
#define MD 1000000007
#define why(a,b) while(cin>>a>>b)
#define whyt(q) while(cin>>q)
 
int main(){
	lint a,b;
	cin>>a>>b;
	string s;
	for(;a<=b;a++){
		if(a%3==0){
			cout<<a<<"\n";
			continue;
		}
		stringstream strst;
		strst<<a;
		strst>>s;
		for(lint i=0;i<s.size();i++){
			if(s[i]=='3'){
				cout<<s<<"\n";
				break;
			}
		}
	}
}