(defun main (&rest argv)
  (declare (ignorable argv))
  (let* ((m (read)))
    (dotimes (_ m)
      (let* ((a (read))
             (s ""))
        (loop while (/= a 0) do
              (let ((b a))
                (setf a (floor (1- a) 2))
                (if (= (1+ (* 2 a)) b)
                    (setf s (concatenate 'string s "L"))
                    (setf s (concatenate 'string s "R")))))
        (format t "~a~%" (reverse s))))))

(main)