T s

T sT sT sT sT sT s
T sT sT sT sT sT s
T sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT sT s