zhang1, ~{UE~}
    8       8   
888888 8888888  
    8  8        
    8  888888   
 8888  8        
 8     888888   
 8     8        
8   8 888888888 
888888 8 8      
    8  8 8      
    8  8  8  88 
    8  8  8 8   
    8  8   8    
8  8   8 8 8    
 888   88   8   
  8    8     88