B3311331313231311331322331333132313231333131323223313331323132322132221   >>    B331133131323131133132233133313231323133313132322331333132313232213222   <<    B3311331313231311331322331333132313231333131323223313331323132322132223   >>      B3311331313231311331322331333132313231333131323223313331323132322132222   >>