C111123313121111121111331333133313331333112221211111133133313311233221   >>    C11112331312111112111133133313331333133311222121111113313331331123322   <<    C111123313121111121111331333133313331333112221211111133133313311233223   >>      C111123313121111121111331333133313331333112221211111133133313311233222   >>