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

int main(){
  long long  a, b;
  cin >> a >> b;
  vector<int> vc;

  for(long long i = a; i <= b; i++){
    if(i%3 == 0 || to_string(i).find("3") != -1){
      cout << i << endl;
    }
  }
}