C1111233133313231133133313331333133313231323331333133313113121232311   >>    C111123313331323113313331333133313331323132333133313331311312123231   <<    C1111233133313231133133313331333133313231323331333133313113121232313   >>      C1111233133313231133133313331333133313231323331333133313113121232312   >>