C121212123112323223313132322331323133313232213331323133112311111   >>    C12121212311232322331313232233132313331323221333132313311231111   <<    C121212123112323223313132322331323133313232213331323133112311113   >>      C121212123112323223313132322331323133313232213331323133112311112   >>