e = 0

while e != words.length - 1
  if words[e][0] > words[e + 1][0]
    spec_word = words[e]
    words[e] = words[e + 1]
    words[e + 1] = spec_word
    if e > 0
      e -= 1
    end
  else
    e += 1
  end
end