C1111233133313231133133313331333133313231323331333133313132123213311   >>    C111123313331323113313331333133313331323132333133313331313212321331   <<    C1111233133313231133133313331333133313231323331333133313132123213313   >>      C1111233133313231133133313331333133313231323331333133313132123213312   >>