C212212121212113313221323131323131323132322331323132233131313232211
  >>
   C21221212121211331322132313132313132313232233132313223313131323221
  <<
   C212212121212113313221323131323131323132322331323132233131313232213
  >>
 
 
 C212212121212113313221323131323131323132322331323132233131313232212
  >>