hira = "あいうえおぁぃぅぇぉ\
 かきくけこがぎぐげごさしすせそ\
 ざじずぜぞたちつてとっだぢづでどっ\
 なにぬねのはひふへほまみむめも\
 やゆよゃゅょらりるれろわをんー".split(//)
 while true do
  h = (0..7).collect { |i|
   hira[rand(hira.length)]
  }.join('')
  puts h
 end