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