// This file is a "Hello, world!" in C++ language by GCC for wandbox.
#include <iostream>
#include <cstdlib>

int main()
{
    int a, b;
    std::cin >> a >> b;
    for(int i = a; i <= b; i++){
        if(i % 3 == 0){
            std::cout << i << std::endl;
        } else {
            int a = i;
            while(a != 0){
                if(a % 10 == 3){
                    std::cout << i << std::endl;
                    break;
                }
                a /= 10;
            }
        }
    }
}