▒▒▒▒▒▒          
   ·····          
▒▒▒▒·♣·▒▒▒▒▒      
▒··········       
▒··♣···♣·▒▒▒▒▒    
▒··············   
▒····<···▒▒       
▒·······Zr▒▒▒▒▒▒▒▒
▒··♣···♣aro······▒
▒·······▒▒▒▒▒▒▒▒·▒
▒····♣·▒▒         
▒·▒▒··▒▒          
▒· ···            
  ·▒·▒            
   ··