Run away!

the zoo, a kangaroo was always fleeing the enclosure. The keepers knew he jumped high and built a 10-foot fence. It didn't help, because the kangaroo always ran away. So they erected a 20-foot fence. And he left again. When the fence was already 12 meters long, the camel from the neighboring fence asked the kangaroo: - How far do you think they will go? The kangaroo replied: - More than 300 unless someone locks the gate at night.