The Tickle Elf Is Playing Prank Again!

Itchy elves are almost the smallest group of elves in the world. It is difficult to see them with your eyes, but you can detect traces of their presence almost everywhere: in the little red envelopes bitten by mosquitoes, in the noses of people sneezing, and in the sleepy eyes of people who have not woken up... Moreover, the Itchy Elf is also the elf who likes to play pranks the most... Purpose: Discover and solve problems in an interesting way, and create a comfortable sleeping environment