434. There is half a glass of milk and half a glass of black coffee. A spoon of milk was transferred from the first glass to the second, and then a spoon of the resulting mixture was transferred from the second glass to the first. What is more: coffee in the first glass or milk in the second?
$\triangle$ After the pourings, both glasses remained half full. Therefore, as much milk as was removed from the first glass was added to it in the form of coffee; as much coffee as was removed from the second glass was added to it in the form of milk.

Answer: equally.