#include <iostream>
#include <string>

int main()
{
    int A,B;
    std::cin >> A >> B;

    for (int i = A; i <= B; i++)
        {
            if ( i%3 == 0 || std::to_string(i).find("3") != std::string::npos )
            {
                std::cout << i << std::endl;
            }
        }
    
    return 0;
}