|  | C111123313331323113313331333133313331122112312111112111112111112111112111133132313331311331211 
  >> |  | C11112331333132311331333133313331333112211231211111211111211111211111211113313231333131133121 
  << |  | C111123313331323113313331333133313331122112312111112111112111112111112111133132313331311331213 
  >> |  |