|  | C31231211111133131211113313331323133313331311233133313113313231333132313331333133313331313311211 
  >> |  | C3123121111113313121111331333132313331333131123313331311331323133313231333133313331333131331121 
  << |  | C31231211111133131211113313331323133313331311233133313113313231333132313331333133313331313311213 
  >> |  |