using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter a value for x");

        int x = int.Parse(Console.ReadLine());

        if(((x*x*x*x)+(x*x*x)-(7*x*x)-x+6) == 0)

        {

            Console.WriteLine("The value " + x + " IS a root of the equation");

        }

        else

        {

            Console.WriteLine("The value " + x + " IS NOT a root of the equation");

        }

    }

}