(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((s (read-line))
         (n (loop for i below 8
                  sum (loop for c across (read-line)
                            count (char= c #\.)))))
    (format t "~a~%" (if (evenp n) s (if (string= s "yukiko") "oda" "yukiko")))))

(main)