#include <bits/stdc++.h>
using namespace std;

int main() {
  int A,B;
  cin >> A >> B;
  for (int i=A;i<=B;i++){
    //int str = i;
    string str = to_string(i);
    int threepos = -1;
    threepos = str.find_first_of('3');
    // 3の倍数ならば…
    if (i % 3 == 0){
      cout << i << endl;
    }
    // 3がつくならば…
    else if (threepos >= 0){
      cout << i << endl;
    }
  }
  //cout << result.at(dif) << endl;
  return 0;
}