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