#include <iostream>
#include <string>
using namespace std;


int main(){
  int A, B, i, j;
  string str_i;
  cin >> A >> B;
  for (i = A;i <= B;i++){
    if (i % 3 == 0){
      cout <<i<<endl;
      continue;
    }else{
      str_i = to_string(i);
      for (j = 0;j<str_i.size();j++){
        if (str_i[j] == '3'){
          cout <<i<<endl;
          break;
        }
      }
    }
  }
  return 0;
}