C1111133313331323223313331333133313331211111313222121211
  >>
   C111113331333132322331333133313331333121111131322212121
  <<
   C1111133313331323223313331333133313331211111313222121213
  >>
 
 
 C1111133313331323223313331333133313331211111313222121212
  >>