#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<stack>
#include<queue>
#include<list>

#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
#define INF 1000000000

using namespace std;


int main(void) {
	int a, b;
	int p;

	cin >> a >> b;

	FOR(i, a, b) {
		p = i;
		if (p % 3 == 0) {
			cout << p << endl;
			continue;
		}
		while (p != 0) {
			if (p % 10 == 3) {
				cout << i << endl;
				break;
			}

			p /= 10;
		}
	}
	return 0;
}