B3311331313231311331322331333132313331323131323223313223313331123111   >>    B331133131323131133132233133313231333132313132322331322331333112311   <<    B3311331313231311331322331333132313331323131323223313223313331123113   >>      B3311331313231311331322331333132313331323131323223313223313331123112   >>