#####   
              ##...##  
             ##.....## 
     #########....##.# 
     #.#.#.##......#.# 
##+#+#z#'#'#......##.##
+..........'.......#..#
##+#+#+#'#'#..........#
       #.#.##........##
       #######......## 
             ##...###  
             #...##    
             ###..#    
               ##.#    
              ##.##    
              #.##     
              #.#      
              #.##     
              ##.##    
             ##...##   
             #.....### 
            ##.......##
            #..∩..∩...#
           #.........##
           ##.......## 
            #########