using System.IO;

using System;

​

abstract class Customer

{

    public string First_name,Last_name,idnumber;

    public abstract void GetInfo();

    public abstract void Display();

    public abstract void AssignDisc();

}  

    class Customer:NewCustomer

    int platinum, gold, regular, address, discount, num_items, cost;

    public NewCustomer(int plat,int g,int reg,int add,int disc,int num,int cos)

    {

        platinum = plat;

        gold= g;

        regular= reg;

        address = add;

        discount= disc;

        num_items= num;

        cost = cos;

    }

    public override GetInfo(){

        Console.WriteLine("Enter your First name");

        return(First_name);

        Console.WriteLine("Enter your Last name");

        return (Last_name);

        Console.WriteLine("Enter your id number");

        return(idnumber);

    }

    public override Display(){

        Console.WriteLine("The First name is:" + First_name);

        Console.WriteLine("The Last name is:" + Last_name);

        Console.WriteLine("The idnumber is:" + idnumber);

    }

    static void Main()

    {

        Console.WriteLine("Hello, World!");

    }

}