      
1.
    3    512    8  
2.
    4    512    3  
3.
    2    512    5  
4.
    1    512    6  
5.
    1    512    3  
6.
512    5  
512    
  7
  6
 5
  5
  4
    3
  3
  2
  2
  2
     2
  2
  2
     1
  1
  1
  1
  1
  1
  1
  1
  1
  1
  1