How Many Derangements Are There if You Had Five Numbers?

If you switch anybody's then it automatically becomes a case where one of them has their jacket. So if one has two and two has three and three has one, ye, that's one way it can happen,. But what about this way? Oh, we that's sure. That's sure. You can just rotate all of them around by one. So there's only two ways then. This questethe are what are called derangements, some way of arranging the numbers from one up to something up to n - each position doesn't have its own number. i would say there's exactly one derangement of two numbers. And then there's two derangements of three numbers