--リジャッジで落ちたコードのputStrLnをputStrに変更

-- Try yukicoder
-- author: Leonardone @ NEETSDKASU


main = putStrLn . unlines . solve . map read . tail . lines =<< getContents

solve x = map (foo "") x where
    foo s 0 = s
    foo s x
        | z == 0    = foo ('R' : s) (y - 1)
        | otherwise = foo ('L' : s) y
        where
            (y, z) = divMod x 2