C21221212121211331322132313132313231313232233132313223313132323221
  >>
   C2122121212121133132213231313231323131323223313231322331313232322
  <<
   C21221212121211331322132313132313231313232233132313223313132323223
  >>
 
 
 C21221212121211331322132313132313231313232233132313223313132323222
  >>