C2122121212121133132213231313231313231323223313231322331323133313231313121   >>    C212212121212113313221323131323131323132322331323132233132313331323131312   <<    C2122121212121133132213231313231313231323223313231322331323133313231313123   >>      C2122121212121133132213231313231313231323223313231322331323133313231313122   >>