On the piece of land you own, insect pests are bred. They have already eaten almost all the vegetation. If you don't stop them, everything will dry up. Your task is, gradually fencing off your pieces of land, to lock the cockroach and other insects on a small patch of land so that they no longer have the opportunity to harm. With each level, the number of pests increases, and the area on which they need to be locked up decreases. Stop pests, save your land!