//Normal

#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

void print(auto a){
  cout << a;
}

void prints(auto a){
  cout << a << " ";
}

void prints(){
  cout << " ";
}

void printl(auto a){
  cout << a << endl;
}

void printl(){
  cout << endl;
}

void fix(int n){
  cout << fixed << setprecision(n);
}

int siz(string s){
  return (int)s.size();
}

int main(){
  ll A, B; cin >> A >> B;
  
  for(ll i = A; i <= B; i++){
    string j = to_string(i);
    
    if(i%3 == 0 or (int)j.find("3") != -1) printl(i);
  }
  
  return 0;
}