|  | C312312111111331312111133133313231333133313112331333133112111133133313331333133313331322321131311 
  >> |  | C31231211111133131211113313331323133313331311233133313311211113313331333133313331333132232113131 
  << |  | C312312111111331312111133133313231333133313112331333133112111133133313331333133313331322321131313 
  >> |  |