Kangaroo and cage

One day the Zookeepers found the kangaroo ran out from the cage, and then they discussed and had the consensus that the height of the cage was too low. So they decided to change the cage height from 10 to 20 meters. The result is that the next day they found he kangaroo was out again. So they decide to extend the height to 30 meters taller.




The other day they actually did not expect to see kangaroos outside. They even wonder whether these kangaroo wearing some high-bouncing shoes like nike shox shoes or air nike shox. So the administrators had the final decision: raising the height of the cage to 100 meters.



One day a few giraffes and kangaroos are in the chat, "Look, will these people continue to heighten your cage?” Giraffe asked." Difficult to say.” Kangaroo said: "If they continue to forget to close the door.”