using System;

public class Program

{

    public static void Main()

    {  

         //Ujian Lab. Teknik Pemrograman

            //NPM: 1731029

            //Nama: Hendi

​

            Console.WriteLine("NPM Terakhir 9");

            int npm, a;

            npm = 9; a = 1;

​

            while (npm <= 90)

            {

                if (npm <= 90)

                {

​

                }

                npm = a * 9;

                Console.WriteLine(npm);

                a++;

​

                if (npm <= 90)

                {

                }

​

​

​

​

        }   

    }

}