using System;

​

public class Counter

{

    public static void Main()

    {

​

        string myStr;

        int i, len, lower_case, upper_case;

​

        Console.Write("Enter string: ");

        myStr = Console.ReadLine();

        Console.WriteLine("String: " + myStr);

​

        lower_case = 0;

        upper_case = 0;

​

        len = myStr.Length;

​

        for (i = 0; i < len; i++)

        {

            if (myStr[i] >= 'a' && myStr[i] <= 'z')

            {

                lower_case++;

            }

            else if (myStr[i] >= 'A' && myStr[i] <= 'Z')

            {

                upper_case++;

            }

        }

        Console.WriteLine("Lowercase: {0}", lower_case);

        Console.WriteLine("ppercase: {0}", upper_case);

    }

}