import sequtils, strutils

let
  nk = stdin.readLine.split.map parseInt
  n = nk[0]
  k = nk[1]
  xss = n.newSeqWith stdin.readLine
var
  ss = ""

for xs in xss:
  var
    s = ""
  for x in xs:
    for _ in 0 ..< k:
      s &= x
  s &= "\n"
  ss &= s.repeat k

echo ss