C111123313121111121111331333133313331323132333132213231323132313232311   >>    C11112331312111112111133133313331333132313233313221323132313231323231   <<    C111123313121111121111331333133313331323132333132213231323132313232313   >>      C111123313121111121111331333133313331323132333132213231323132313232312   >>