B3311331313231311331322331333132313331322331323133313331323121331122321   >>    B331133131323131133132233133313231333132233132313331333132312133112232   <<    B3311331313231311331322331333132313331322331323133313331323121331122323   >>      B3311331313231311331322331333132313331322331323133313331323121331122322   >>