C111112111133131121133133313331333132313113313331333121111132233132212131   >>    C11111211113313112113313331333133313231311331333133312111113223313221213   <<    C111112111133131121133133313331333132313113313331333121111132233132212133   >>      C111112111133131121133133313331333132313113313331333121111132233132212132   >>