mccv

def mrrrrrmmmmmmrrrr
  str = ''; upper = true; m = true
  (rand(30) + 30).times do
    upper = !upper if rand < 0.3
    m     = !m     if rand < 0.3
    str << lambda {|ch| upper ? ch.upcase : ch}.call(m ? 'm' : 'r')
  end
  str
end