C21221212121211331313233313131133132333132313223313231133132313232231
  >>
   C2122121212121133131323331313113313233313231322331323113313231323223
  <<
   C21221212121211331313233313131133132333132313223313231133132313232233
  >>
 
 
 C21221212121211331313233313131133132333132313223313231133132313232232
  >>