C212212121212113313221323131323132313132322331323132213111121
  >>
   C21221212121211331322132313132313231313232233132313221311112
  <<
   C212212121212113313221323131323132313132322331323132213111123
  >>
 
 
 C212212121212113313221323131323132313132322331323132213111122
  >>