B3311331313231311331322331333132313331323131323223313331323133112311221   >>    B331133131323131133132233133313231333132313132322331333132313311231122   <<    B3311331313231311331322331333132313331323131323223313331323133112311223   >>      B3311331313231311331322331333132313331323131323223313331323133112311222   >>