Three boxes contain blue and orange balloons. One
box contains 2 blue balloons, another one contains 2 orange balloons, and a
third one contains 1 blue and 1 orange balloon. The boxes have been
labeled, but each of the labels is on a wrong box.
All three boxes have lids, and you cannot see what is in them.
However, you are allowed to reach into any of the boxes without
peeking and take one or two balloons out and look at them. Taking out
as few balloons as possible, figure out what the correct labels should