C121212123112323223313132322331323133313233313232233132312312311   >>    C12121212311232322331313232233132313331323331323223313231231231   <<    C121212123112323223313132322331323133313233313232233132312312313   >>      C121212123112323223313132322331323133313233313232233132312312312   >>