fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


fun readStr () =
    let
        fun scan reader stream = SOME (StringCvt.splitl (not o Char.isSpace) reader (StringCvt.skipWS reader stream))
    in
        valOf (TextIO.scanStream scan TextIO.stdIn)
    end


fun listChNTimes 0 _ = []
  | listChNTimes n ch = 
    ch :: listChNTimes (n - 1) ch

fun printStringNTimes 0 _ = ignore ()
  | printStringNTimes n s = 
    (
      print (s ^ "\n");
      printStringNTimes (n - 1) s
    )

fun printAns _ [] = ignore ()
  | printAns k (h::tl) =
    let
        val unit = String.implode
                       (List.rev (List.foldl (fn (ch, acc) =>
                                                 listChNTimes k ch @ acc)
                                             []
                                             (String.explode h)))
    in
        (
          printStringNTimes k unit;
          printAns k tl
        )
    end
                       


val () =
    let
        val n = readInt ()
        val k = readInt ()
        val aMatrix = List.tabulate (n, fn _ => readStr ())
    in
        printAns k aMatrix
    end