C3121113331313231323132333131313231323131323223313233313233313232213331313221
  >>
   C312111333131323132313233313131323132313132322331323331323331323221333131322
  <<
   C3121113331313231323132333131313231323131323223313233313233313232213331313223
  >>
 
 
 C3121113331313231323132333131313231323131323223313233313233313232213331313222
  >>