using System;

public class Program

{

    public static void Main()

    {        

​

        String firstName = "" ; 

        String lastName = "" ;

        Double yearBorn = 0.00;

        Double testScore = 0.00;

        Double currentYear = 2018.0;

        Double yearsOld = 0.00;

        Console.WriteLine("Whats your first name? "); //prompt user for first name

        firstName = (Console.ReadLine()); //Get user input [Console.ReadLine()]

        //Save in the variable [LasrName]

        Console.WriteLine("Whats your last name? "); //prompt user for last name

        lastName = (Console.ReadLine()); //Get user input [Console.ReadLine()]

        //Save in the variable [lastName]

        Console.WriteLine("What year were you born in? "); //prompt user for year borned 

        yearBorn = Double.Parse(Console.ReadLine()); //Get user input [Console.ReadLine()] //Convert to a Double [double.Parse()]

        //Save in the variable [yearBorn]

        Console.WriteLine("Whats your test score? "); //prompt user for user test score

        testScore = Double.Parse(Console.ReadLine()); //Get user input [Console.ReadLine()] //Convert to a Double [double.Parse()]

        //Save in the variable [testScore]

        yearsOld = ( currentYear - yearBorn );

        Console.WriteLine( firstName + " " + lastName + " is " + yearsOld + " years old.");

       if ( testScore < 60)    

       {

            Console.WriteLine( "You got a E in your test" );

       }

         if ( 70 > testScore&&testScore >= 60)    

       {

            Console.WriteLine( "You got a D in your test" );

       }

        if ( 80 > testScore&&testScore >= 70)    

       {

            Console.WriteLine( "You got a c in your test" );

       }

            if ( 90 > testScore&&testScore >= 80)    

       {

            Console.WriteLine( "You got a B in your test" );

       }

       if ( 900000 >= testScore&&testScore >= 90)    

       {

            Console.WriteLine( "You got a A in your test" );

       }

    }

}