C111123313121111121111331333133313331323221211113313121133133313223331321   >>    C11112331312111112111133133313331333132322121111331312113313331322333132   <<    C111123313121111121111331333133313331323221211113313121133133313223331323   >>      C111123313121111121111331333133313331323221211113313121133133313223331322   >>