B3311331313231311331322331333132313331322331323133313331323133112213112311   >>    B331133131323131133132233133313231333132233132313331333132313311221311231   <<    B3311331313231311331322331333132313331322331323133313331323133112213112313   >>      B3311331313231311331322331333132313331322331323133313331323133112213112312   >>