chuan2, zhuan4, 傳, ~{4+~}.
   8     8      
   8 888888888  
   8     8      
  8   8888888   
  8   8  8  8   
 88   8888888   
8 8   8  8  8   
  8   8888888   
  8      8  8   
  8  8888888 8  
  8         8   
  8 88888888888 
  8   8     8   
  8    88   8   
  8     8 888   
  8        8    
0001000001000000
0001011111111100
0001000001000000
0010001111111000
0010001001001000
0110001111111000
1010001001001000
0010001111111000
0010000001001000
0010011111110100
0010000000001000
0010111111111110
0010001000001000
0010000110001000
0010000010111000
0010000000010000