The cat nibbles a quarter of a sausage on one side, after that the dog comes and nibbles a third of what is left on the other side, after that the cat nibbles a quarter on its side, and the dog - nibbles another third on its side, and so on. After 2021 a bite from the side of the dog and 2021. Bite from the cat's side, what is the ratio between the portion of the sausage that the dog ate and the portion that the cat ate?