B3311331313231311331322331333132313331323133313233313331311331333112221221
  >>
   B331133131323131133132233133313231333132313331323331333131133133311222122
  <<
   B3311331313231311331322331333132313331323133313233313331311331333112221223
  >>
 
 
 B3311331313231311331322331333132313331323133313233313331311331333112221222
  >>