C21221212121211331313233313131133132333132313223313232233132323221
  >>
   C2122121212121133131323331313113313233313231322331323223313232322
  <<
   C21221212121211331313233313131133132333132313223313232233132323223
  >>
 
 
 C21221212121211331313233313131133132333132313223313232233132323222
  >>