C21221212121211331322132313132313231313232233132313221311211
  >>
   C2122121212121133132213231313231323131323223313231322131121
  <<
   C21221212121211331322132313132313231313232233132313221311213
  >>
 
 
 C21221212121211331322132313132313231313232233132313221311212
  >>