B3311331313231311331322331333132313331323223312113313331333133313331333223121
  >>
   B331133131323131133132233133313231333132322331211331333133313331333133322312
  <<
   B3311331313231311331322331333132313331323223312113313331333133313331333223123
  >>
 
 
 B3311331313231311331322331333132313331323223312113313331333133313331333223122
  >>