B3311331313231311331322331333132313331322331323133313331331122132231221   >>    B331133131323131133132233133313231333132233132313331333133112213223122   <<    B3311331313231311331322331333132313331322331323133313331331122132231223   >>      B3311331313231311331322331333132313331322331323133313331331122132231222   >>