C2122121212121133132213231313231313231323223313231322331323132333131221   >>    C212212121212113313221323131323131323132322331323132233132313233313122   <<    C2122121212121133132213231313231313231323223313231322331323132333131223   >>      C2122121212121133132213231313231313231323223313231322331323132333131222   >>