5.2ConditionalStatements_BonusScore

using System;

class BonusScore
{
    static void Main ()
    {
        Console.Write("Please, enter a whole number in the range [1 ... 9], SCORE = ");
        string inputStr = Console.ReadLine();
        int score = int.Parse(inputStr);

        if (score > 0 && score < 10)
        {
            if (score >= 1 && score <= 3)
            {
                Console.WriteLine("Your Final Score is: {0} !", (score * 10));
            }
            else if (score >= 4 && score <= 6)
            {
                Console.WriteLine("Your Final Score is: {0} !", (score * 100));
            }
            else
            {
                Console.WriteLine("Your Final Score is: {0} !", (score * 1000));
            }
        }
        else
        {
            Console.WriteLine("Input Error - Invalid score !!!");
        }
        Console.ReadLine();
    }
}