C1311213331333132332133313331333133313331311331333133313331333132232121
  >>
   C131121333133313233213331333133313331333131133133313331333133313223212
  <<
   C1311213331333132332133313331333133313331311331333133313331333132232123
  >>
 
 
 C1311213331333132332133313331333133313331311331333133313331333132232122
  >>