|  | C1111133313331323223313331333133313311211111211331333131133133313331333133321133321 
  >> |  | C111113331333132322331333133313331331121111121133133313113313331333133313332113332 
  << |  | C1111133313331323223313331333133313311211111211331333131133133313331333133321133323 
  >> |  |