C3121113331313231323132333131313231323131323223313233313233313232313232211
  >>
   C312111333131323132313233313131323132313132322331323331323331323231323221
  <<
   C3121113331313231323132333131313231323131323223313233313233313232313232213
  >>
 
 
 C3121113331313231323132333131313231323131323223313233313233313232313232212
  >>