using System;

public class Program

{

    public static void Main()

    {

        bool wrong = false;

        Console.WriteLine("How old is mike?");

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

        if (age < 30)

        {

         wrong = true;

        }

        if(age>=30)

        {

          Console.WriteLine("CORRECT YAY");

        }

        while(wrong)

        {

         Console.WriteLine("Wrong try again");

         Console.WriteLine("Enter a new age: ");

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

         if (age < 30)

         { 

             Console.WriteLine("Go higher");

             wrong = true;

         }

            if (age >=30)

            {

                Console.WriteLine("Correct!");

             wrong = false;

            }

        }

    }

}