C21221212121211331313233313131133132333132313223313113313232231
  >>
   C2122121212121133131323331313113313233313231322331311331323223
  <<
   C21221212121211331313233313131133132333132313223313113313232233
  >>
 
 
 C21221212121211331313233313131133132333132313223313113313232232
  >>