C313212111113331323312111133133313331333133313331333133313331322321311
  >>
   C31321211111333132331211113313331333133313331333133313331333132232131
  <<
   C313212111113331323312111133133313331333133313331333133313331322321313
  >>
 
 
 C313212111113331323312111133133313331333133313331333133313331322321312
  >>