C2122121212132322331313132313232233132322331333131212113313123231321   >>    C212212121213232233131313231323223313232233133313121211331312323132   <<    C2122121212132322331313132313232233132322331333131212113313123231323   >>      C2122121212132322331313132313232233132322331333131212113313123231322   >>