C1311213331333132332133313331333133313121111331333133313331333133313332331121211
  >>
   C131121333133313233213331333133313331312111133133313331333133313331333233112121
  <<
   C1311213331333132332133313331333133313121111331333133313331333133313332331121213
  >>
 
 
 C1311213331333132332133313331333133313121111331333133313331333133313332331121212
  >>