C11111333133313232233133313331333133313231322323133311211
  >>
   C1111133313331323223313331333133313331323132232313331121
  <<
   C11111333133313232233133313331333133313231322323133311213
  >>
 
 
 C11111333133313232233133313331333133313231322323133311212
  >>