import java.util.*;

public class guess
{
  static Scanner kb = new Scanner(System.in);
  public static void main(String[] args)
  {
     int randomNumber, guess;
     boolean found;
     
     // random number between 1 and 20
     randomNumber = (int)(Math.random() * 20 + 1);
     
     System.out.println("I'm thinking of a number between 1 and 20.");
     
     found = false;
     while ( ! found )
     {
	System.out.print("Guess the value between 1 and 20: ");
	guess = kb.nextInt();
	
	if ( guess == randomNumber )
	  found = true;
	else
	  System.out.println("It's not " + guess +".\n");
     }
     
     System.out.println("\nYou got it!\n");
  }
}