Crazy Building

Beavers - cute hardworking animals. One day they decided to build a high tower at the mouth of the river. We are with you will help them in this. Our goal with the help of wooden planks and mathematics to lay out the walls of this building. You think it's too easy? You are wrong. Your main task - to make all the planks and chains in the right order! You can build a more sustainable and architecturally exquisite tower than your opponent? Then go ahead!