C121212123112323223313132322331323133313233313232233132321133221   >>    C12121212311232322331313232233132313331323331323223313232113322   <<    C121212123112323223313132322331323133313233313232233132321133223   >>      C121212123112323223313132322331323133313233313232233132321133222   >>