C2122121212121133132213231313231313231323223313231322331323133313331311112121   >>    C212212121212113313221323131323131323132322331323132233132313331333131111212   <<    C2122121212121133132213231313231313231323223313231322331323133313331311112123   >>      C2122121212121133132213231313231313231323223313231322331323133313331311112122   >>