C111123313121111121111331333133313331333112221211111211331123313233223331   >>    C11112331312111112111133133313331333133311222121111121133112331323322333   <<    C111123313121111121111331333133313331333112221211111211331123313233223333   >>      C111123313121111121111331333133313331333112221211111211331123313233223332   >>