C2122121212121133132213231313231323131323223313231322331323132322123123111   >>    C212212121212113313221323131323132313132322331323132233132313232212312311   <<    C2122121212121133132213231313231323131323223313231322331323132322123123113   >>      C2122121212121133132213231313231323131323223313231322331323132322123123112   >>