using System;

public class Program

{

    public static void Main()

    {

        var output = CommonSuffix();

        Console.WriteLine(output);

    }

    //Find the common suffix letters between 2 words (real or made up)

    //for example:

    //'boom' and 'gloom' would return 'oom'

    //'brake' and 'grape' returns 'e'

    //'first' and 'second' returns ''

    public static string CommonSuffix()

    {

​

    }

}