#include<iostream>
using namespace std;
int main()
{
    int A, B;
    cin >> A >> B;
    for(int i = A; i <= B; i++)
    {
        if(i % 3 == 0)
        {
            cout << i << endl;
        }
        else
        {
            int temp = i;
            while(temp > 0)
            {
                if(temp % 10 == 3)
                {
                    cout << i << endl;
                    break;
                }
                else
                {
                    temp /= 10;
                }
            }
        }
    }
    return 0;
}