C111123313121111121111331333133313331333112221211111333131212231   >>    C11112331312111112111133133313331333133311222121111133313121223   <<    C111123313121111121111331333133313331333112221211111333131212233   >>      C111123313121111121111331333133313331333112221211111333131212232   >>