C111123313121111121111331333133313331323221211113313113313331333133313112221321   >>    C11112331312111112111133133313331333132322121111331311331333133313331311222132   <<    C111123313121111121111331333133313331323221211113313113313331333133313112221323   >>      C111123313121111121111331333133313331323221211113313113313331333133313112221322   >>