C111123313121111121111331333133313331311211312111111331333112132233133313223331   >>    C11112331312111112111133133313331333131121131211111133133311213223313331322333   <<    C111123313121111121111331333133313331311211312111111331333112132233133313223333   >>      C111123313121111121111331333133313331311211312111111331333112132233133313223332   >>