C1111233131211111211113313331333133313331311211331333133313331333133313133112323211
  >>
   C111123313121111121111331333133313331333131121133133313331333133313331313311232321
  <<
   C1111233131211111211113313331333133313331311211331333133313331333133313133112323213
  >>
 
 
 C1111233131211111211113313331333133313331311211331333133313331333133313133112323212
  >>