import java.util.Scanner;

class While{

  public static void main(String[] args) {
    Scanner myScanner = new Scanner(System.in);
    String inp = myScanner.nextLine();

    while( ! inp.equals("Kari") ){
      System.out.println("Feil");
      inp = myScanner.nextLine();
    }

    System.out.println("Riktig");
  }
}