#include<iostream>
#include<map>
#include<vector>
#include<algorithm>

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FUNCTION__ << endl;
#define int long long

const long long INF = __LONG_LONG_MAX__ / 2;

bool contains(const std::string& str1,const std::string& str2)
{
    std::string::size_type pos = str1.find(str2);
    if(pos==std::string::npos)
    {
        return false;
    }
    return true;
}

using namespace std;

signed main(){
    int A,B;
    cin >> A>>B;
    for (int i = A; i <= B; i++){
      if (i % 3 ==0){
        cout << i << endl;
      } else if (contains(to_string(i), "3")) {
        cout << i << endl;
      }
    }
    return 0;
}