gistfile1.txt

def short(tweets)
  sub_hash = { "too" => "2", "to" => "2", "two" => "2", "For" => "4", " for " => " 4 ", "four" => "4", " be " => " b ", "you" => "u", " at " => " @ ", "and" => "&"}
  if tweets.length > 140
    sub_hash.each do |k,v|
      tweets.gsub!(k,v) if tweets.include?(k)  
    end
    if tweets.length > 140
       tweets[0,140]
    else
     tweets
    end
  else
    tweets
  end
end