#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;

bool mcheck3(int a) {
  string b = to_string(a);
  int tmp = 0;
  int bb = b.size();
  for (int i = 0; i < bb; i++) {
    if (b[i] == '3') {
      tmp++;
      return false;
      break;
    }
  }
  if (tmp == 0) {
    return true;
  }
}


int main(){


  int A,B; cin >> A >> B;
  for (int i = A; i <= B; i++) {
    if (i % 3 != 0 && mcheck3(i)) {
    }else{
      cout << i << "\n";
    }
  }
  return 0;
}