Look at many cave paintings of she-grugs making hunga bunga <|endoftext|> Grug wake up before sun. Grug go to cube shaped cave. Send cave paintings from one cave to another. Grug unfulfilled. Grug just enter work force last winter, but Grug want more. Grug spend many winters studying meaning of symbols. Grug want to put symbols to use. Grug no understand why Grug only allowed to send messages from one cave to another. <|endoftext|> 