C21221212121211331322132313132313132313232233132313223313221111
  >>
   C2122121212121133132213231313231313231323223313231322331322111
  <<
   C21221212121211331322132313132313132313232233132313223313221113
  >>
 
 
 C21221212121211331322132313132313132313232233132313223313221112
  >>