#include <iostream>
using namespace std;
int main()
{
  int a, b;
  cin >> a >> b;
  for (int k = a; k <= b; k++)
  {
    if (k % 3 == 0)
    {
      cout << k << endl;
    }
    else
    {
      int d = k;
      while (d > 0)
      {
        if (d % 10 == 3) cout << k << endl;
        d = d / 10;
      }
    }
  }
  return 0;
}