C121212123112323223313132322331323123123231323221323132313232221   >>    C12121212311232322331313232233132312312323132322132313231323222   <<    C121212123112323223313132322331323123123231323221323132313232223   >>      C121212123112323223313132322331323123123231323221323132313232222   >>