#include <iostream>
#include <sstream>
#include <math.h>
#include <stack>
#include <set>
#include <algorithm>
#include <string>
#include <queue>
#include <stack>
#include <map>
#include <cstdio>
#include <vector>
using namespace std;

#define INF (1 << 30)
#define INFLL (1LL << 60)

int main() {
	int a,b;
	cin >> a >> b;
	for(int i = a;i <= b;i++){
		if(i % 3 == 0) cout << i << endl;
		else{
			stringstream ss;
			ss << i;
			for(int j = 0;j < ss.str().size();j++){
				if(ss.str()[j] == '3') {
					cout << i << endl;
					break;
				}
			}
		}
	}
	return 0;
}