C111123313121111121111331333133313331333131233133313113313232321133133313233121   >>    C11112331312111112111133133313331333133313123313331311331323232113313331323312   <<    C111123313121111121111331333133313331333131233133313113313232321133133313233123   >>      C111123313121111121111331333133313331333131233133313113313232321133133313233122   >>