B3311331313231311331322331333132313331322331323133313331323133313223113311311   >>    B331133131323131133132233133313231333132233132313331333132313331322311331131   <<    B3311331313231311331322331333132313331322331323133313331323133313223113311313   >>      B3311331313231311331322331333132313331322331323133313331323133313223113311312   >>