1,1................        
      1,1........4,4..........1,1....    
    1,1..0,0........1,1....4,4..........1,1..  
  1,1..0,0............1,1..4,4............1,1..
1,1....0,0............1,1....4,4........1,1..  
1,1..0,0..1,1....0,0..1,1....0,0....1,1..........    
1,1..0,0..1,1....0,0..1,1....0,0....1,1............  
1,1..0,0................1,1..4,4........1,1..  
1,1..0,0..............1,1....4,4........1,1..  
1,1....0,0....1,1..0,0......1,1..4,4........1,1..    
  1,1..0,0....1,1..0,0....1,1......4,4......1,1....  
1,1..4,4..1,1..0,0......1,1......4,4..........1,1..  
1,1..4,4....1,1..........4,4....1,1....4,4......1,1..
1,1......4,4........1,1......4,4......1,1......
1,1....4,4......1,1....  1,1............    
    1,1........        1,1......