using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("What's your email?");

        string ThisString = Console.ReadLine();

        string Initial = ThisString.Substring(2,1);

        Console.WriteLine("Your first initial is " + Initial);

        Console.WriteLine("Type in a word with x in it:");

        ThisString = Console.ReadLine();

        int Location = ThisString.IndexOf('x');

        Console.WriteLine("The x is at position " + Location);

        Console.WriteLine("Enter your full name:");

        String Name = Console.ReadLine();

        string FirstInitial = Name.Substring(0,1);

        int SpacePosition = Name.IndexOf(" ");

        string LastName = Name.Substring(SpacePosition+1, Name.Length-(SpacePosition+1));

        Console.WriteLine(FirstInitial + " " + LastName);

        Console.WriteLine("Enter a 7 digit integer:");

        string Input = Console.ReadLine();

        Console.WriteLine("The middle three digits are " + Input.Substring(2,3));

    }

}