B3311331313231311331322331333132313331322331323133313311211331323233111121   >>    B331133131323131133132233133313231333132233132313331331121133132323311112   <<    B3311331313231311331322331333132313331322331323133313311211331323233111123   >>      B3311331313231311331322331333132313331322331323133313311211331323233111122   >>