N tower

N towerN towerN towerN towerN towerN tower
N towerN towerN towerN towerN towerN tower
N towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN towerN tower