B3311331313231311331322331333132313331322331323133313231333133313331333133313331333133312211211211
  >>
   B331133131323131133132233133313231333132233132313331323133313331333133313331333133313331221121121
  <<
   B3311331313231311331322331333132313331322331323133313231333133313331333133313331333133312211211213
  >>
 
 
 B3311331313231311331322331333132313331322331323133313231333133313331333133313331333133312211211212
  >>