using System;

namespace Ex

{

    public class Program

    {

        public static void Main (string[] args)

        {

            Random rnd=new Random();

            Console.WriteLine("random number bettween 55-100:");

            int num=rnd.Next (55,101);

            if (num<=90)

            {

            Console.WriteLine("number is 90 or lower than 90");

            }

            else

            {

            Console.WriteLine("number isnt 90 or lower than 90");

            }

        }

    }

}

​