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

#define pb         push_back
#define mp         make_pair
#define ll         long long
#define PI         acos(-1.0)
#define ALL(A)     (A).begin(), (A).end()
#define vsort(v)   sort(v.begin(),v.end())
#define FOR(I,A,B) for(int I = (A); I < (B); ++I)

int main(){
  ll int A, B;
  cin >> A >> B;
  string s;
  FOR(i, A, B+1){
    if(i%3==0){
      cout << i << endl;
    }else{
      s = to_string(i);
      if(s.find("3")!=-1) cout << i << endl;
      /*
      FOR(j, 0, s.length()){
        if(s[j]=='3'){
          cout << i << endl;
          break;
        }
      }
      */
    }
  }
}