#include <iostream>
using namespace std;

bool is3num(long long a)
{
    long long tmp;
    tmp = a;
    while (tmp != 0)
    {
        if (tmp % 10 == 3)
        {
            return true;
        }
        tmp /= 10;
    }
    return false;
}

int main()
{
    long long a, b;
    cin >> a >> b;
    for (long long i = a; i <= b; i++)
    {
        if (i % 3 == 0 || is3num(i))
        {
            cout << i << endl;
        }
    }
    return 0;
}