C1111233133313231133133313331333133313231323331333133313111133221   >>    C111123313331323113313331333133313331323132333133313331311113322   <<    C1111233133313231133133313331333133313231323331333133313111133223   >>      C1111233133313231133133313331333133313231323331333133313111133222   >>