/*
 * Aresh Saharkhiz
 * saharkiz@gmail.com
 * Associate Professor / Mapua Institute of Technology / Philippines
 */

using System;

// Introduction to Software Testing
// Authors: Paul Ammann & Jeff Offutt
// Chapter 3, section 3.3, page 130

internal class twoPred_class
{

    public static string twoPred(int x, int y)
    {
        bool z;

        if (x < y)
        {
            z = true;
        }
        else
        {
            z = false;
        }

        if (z && x + y == 10)
        {
            return "A";
        }
        else
        {
            return "B";
        }
    }

    public static void Main(string[] argv)
    { // Driver method for twoPred
        // Read two integers from standard input, call twoPred()
        int[] inArr = new int[argv.Length];
        if (argv.Length != 2)
        {
            Console.WriteLine("Usage: java numZero v1 v2");
            return;
        }

        for (int i = 0; i < argv.Length; i++)
        {
            try
            {
                inArr[i] = Convert.ToInt32(argv[i]);
            }
            catch (FormatException)
            {
                Console.WriteLine("Entry must be an integer, using 1.");
                inArr[i] = 1;
            }
        }

        Console.WriteLine("The result is: " + twoPred(inArr[0], inArr[1]));
    }

}