B3311331313231311331322331333132313331323131323223313231333132322132222231   >>    B331133131323131133132233133313231333132313132322331323133313232213222223   <<    B3311331313231311331322331333132313331323131323223313231333132322132222233   >>      B3311331313231311331322331333132313331323131323223313231333132322132222232   >>