C11111333133313232233133313331333133313331311331333132323321211
  >>
   C1111133313331323223313331333133313331333131133133313232332121
  <<
   C11111333133313232233133313331333133313331311331333132323321213
  >>
 
 
 C11111333133313232233133313331333133313331311331333132323321212
  >>