#include <algorithm>
#include <iostream>
#include <iomanip>
#include <climits>
#include <string>
#include <vector>
#include <cmath>
#include <set>
#include <map>
using namespace std;
using ll = long long;

bool three(int N)
{
  while (N > 0)
  {
    if (N % 10 == 3)
    {
      return true;
    }
    N /= 10;
  }

  return false;
}

int main(void)
{
  int A, B;
  cin >> A >> B;
  for (int i = A; i <= B; i++)
  {
    if (i % 3 == 0 || three(i))
    {
      cout << i << endl;
    }
  }

  return 0;
}