using System;

public class Program

{

    public static void Main()

    {

        double Tumorvol;

        double PSA;

        Tumorvol=7851;

        PSA=1.775;

        if(Tumorvol<7.851){

            if(PSA<2.549){

                Console.WriteLine("Diseased");

            }

            else if (PSA>= 2.549){

                Console.WriteLine("Non diseased");

            }

        }

        if(Tumorvol>=7.851){

            if(PSA<1775){

                if(PSA<= 1.629){

                    Console.WriteLine("Diseased");

                }

            else if(PSA<1.629){

                if (PSA<1.41){

                    Console.WriteLine("Diseased");

                }

                else if(PSA>=1.41){

                    Console.WriteLine("Non diseased");

                }

            }

        else if(PSA>=1.775){

            Console.WriteLine("Non diseased");

        }

        }

        }

    }

}