import           Control.Monad as M

main :: IO ()
main = do
    m <- readLn
    a <- M.replicateM m readLn
    putStr $ solve a

solve :: [Int] -> String
solve a = unlines $ reverse $ solve' a []

solve' :: [Int] -> [String] -> [String]
solve' t ss = foldl (\acc x -> solve'' x "" : acc) ss t

solve'' :: Int -> String -> String
solve'' 0 x = x
solve'' n x
  | n `mod` 2 == 0 = solve'' ((n `div` 2) - 1) ( 'R' : x )
  | otherwise = solve'' ((n - 1) `div` 2) ( 'L' : x )