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