H  T   T T   T  H
 T   T   T   T 
T  T T T H H T T T  T
  T  T H H T  T  
 T  T     T  T 
T T T T T T T T T T T T
T T T T T T T T T T T T
 T  T     T  T 
  T  T H H T  T  
T  T  T H H T T T  T
 T   T   T   T 
H  T   T T   T  H
