BonusScore

using System;

//Write a program that applies bonus score to given score in the range [1…9] by the following rules:
//•   If the score is between 1 and 3, the program multiplies it by 10.
//•   If the score is between 4 and 6, the program multiplies it by 100.
//•   If the score is between 7 and 9, the program multiplies it by 1000.
//•   If the score is 0 or more than 9, the program prints “invalid score”.

class BonusScore
{
    static void Main()
    {
        Console.Write("Number = ");
        int number = int.Parse(Console.ReadLine());

        if (number >= 1 && number <= 3)
        {
            Console.WriteLine(number * 10);
        }
        else if (number >= 4 && number <= 6)
        {
            Console.WriteLine(number * 100);

        }
        else if (number >= 7 && number <= 9)
        {
            Console.WriteLine(number * 1000);
        }
        else
        {
            Console.WriteLine("invalid score");
        }
    }
}