B3311331313231311331322331333132313233313231333131123313331321123231322331121   >>    B331133131323131133132233133313231323331323133313112331333132112323132233112   <<    B3311331313231311331322331333132313233313231333131123313331321123231322331123   >>      B3311331313231311331322331333132313233313231333131123313331321123231322331122   >>