C21221212121211331313233313131133132333132313223313231333131323221
  >>
   C2122121212121133131323331313113313233313231322331323133313132322
  <<
   C21221212121211331313233313131133132333132313223313231333131323223
  >>
 
 
 C21221212121211331313233313131133132333132313223313231333131323222
  >>