C2122121212121133132213231313231323131323223313231322331331121111112121   >>    C212212121212113313221323131323132313132322331323132233133112111111212   <<    C2122121212121133132213231313231323131323223313231322331331121111112123   >>      C2122121212121133132213231313231323131323223313231322331331121111112122   >>