C121212123112323223313132322331323123123231323221323132313231323132313233111   >>    C12121212311232322331313232233132312312323132322132313231323132313231323311   <<    C121212123112323223313132322331323123123231323221323132313231323132313233113   >>      C121212123112323223313132322331323123123231323221323132313231323132313233112   >>