using System;  

public class Program

{  

    public static void Main() 

{

    string str;

    int alp, digits, specialch, i,l;

    alp = digits = specialch = i = 0;

​

      Console.Write("please enter the string : ");

      str = Console.ReadLine(); 

      l=str.Length; 

​

      while(i<l)

    {

        if((str[i]>='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z'))

        {

            alp++;

        }

        else if(str[i]>='0' && str[i]<='9')

        {

            digits++;

        }

        else

        {

            specialch++;

        }

​

        i++;

    }

​

   Console.Write("Number of Alphabets in the string is : {0}\n", alp);

   Console.Write("Number of Digits in the string is : {0}\n", digits);

   Console.Write("Number of Special characters in the string is : {0}\n\n", specialch);

        Console.Write("/n program is created by Simran Verma");

    }

}

​