B3311331313231311331322331333132313231333131323223313331311331323121121   >>    B331133131323131133132233133313231323133313132322331333131133132312112   <<    B3311331313231311331322331333132313231333131323223313331311331323121123   >>      B3311331313231311331322331333132313231333131323223313331311331323121122   >>