#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;

int main(){
    int a, b, temp;
    cin >> a >> b;
    string delim = "";
    for (int i = a; i <= b; i++){
        temp = i;
        if (!(i%3)) cout <<  i << endl;
        else {
            while (temp){
                if (temp%10 == 3){
                    cout << i << endl;
                    break;
                }
                temp /= 10;
            }
        }
    }
}