C111123313121111121111331333133313331333133313331333133312111133131332212321   >>    C11112331312111112111133133313331333133313331333133313331211113313133221232   <<    C111123313121111121111331333133313331333133313331333133312111133131332212323   >>      C111123313121111121111331333133313331333133313331333133312111133131332212322   >>