B3311331313231311331322331333132313331322331323133313232233131333133322333121   >>    B331133131323131133132233133313231333132233132313331323223313133313332233312   <<    B3311331313231311331322331333132313331322331323133313232233131333133322333123   >>      B3311331313231311331322331333132313331322331323133313232233131333133322333122   >>