B3311331313231311331322331333132313132313331323223313211231132321   >>    B331133131323131133132233133313231313231333132322331321123113232   <<    B3311331313231311331322331333132313132313331323223313211231132323   >>      B3311331313231311331322331333132313132313331323223313211231132322   >>