B3311331313231311331322331333132313331322331323133313331311331323223313333211   >>    B331133131323131133132233133313231333132233132313331333131133132322331333321   <<    B3311331313231311331322331333132313331322331323133313331311331323223313333213   >>      B3311331313231311331322331333132313331322331323133313331311331323223313333212   >>