using System;

public class Program

{

    public static void Main()

    {

        for(int i = 1; i <= 50 ; i++)

        {

            if( ( i % 3 == 0 ) || (i % 10 == 3) || ( i / 10 ==3 ) )

            {

                Console.WriteLine(i);

            }

        }   

    }

}