using System;

public class Program

{

    public static void Main()

    {  

        int i,l1,l2,flag=0;

        Console.Write("Enter the string:\n");

        string str1=Console.ReadLine();

        Console.Write("Enter the string:\n");

        string str2=Console.ReadLine();

        l1=str1.Length;

        l2=str2.Length;

        if (l1 == l2)

        {

        for ( i = 0; i < l1; i++)

         {

           if (str1[i] == str2[i])

            {

               flag= 0;

            }

           else

            {

               flag= 1;

            }

         }

      if( flag==0)

        {

          Console.WriteLine("both strings are of same size and equal");

        }

      else

        {

          Console.WriteLine("both strings are of same size but not equal");

         }

      }

        else

      {

      Console.WriteLine("strings are not same size and they are not equal");

    }

​

}

}