#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef pair<int,int> P;
 
const int INF = 1e9;
const int mod = 1e9+7;
const double EPS = 1e-10;
const double PI = acos(-1.0);
 
int main()
{
    int a,b;
    cin >> a >> b;
    for(int i = a; i <= b; i++){
        if(i%3 == 0) cout << i << endl;
        else{
            int tmp = i;
            while(tmp){
                if(tmp%10 == 3){
                    cout << i << endl;
                    break;
                }
                tmp /= 10;
            }
        }
    }
    return 0;
}