C212212121212113313132333131311331323331323132233131133132313331322223311
  >>
   C21221212121211331313233313131133132333132313223313113313231333132222331
  <<
   C212212121212113313132333131311331323331323132233131133132313331322223313
  >>
 
 
 C212212121212113313132333131311331323331323132233131133132313331322223312
  >>