C11111333133313232233133313331333133112111112113313331311331333222313331313231211
  >>
   C1111133313331323223313331333133313311211111211331333131133133322231333131323121
  <<
   C11111333133313232233133313331333133112111112113313331311331333222313331313231213
  >>
 
 
 C11111333133313232233133313331333133112111112113313331311331333222313331313231212
  >>