B3311331313231311331322331333132313331322331323133313332112323222311   >>    B331133131323131133132233133313231333132233132313331333211232322231   <<    B3311331313231311331322331333132313331322331323133313332112323222313   >>      B3311331313231311331322331333132313331322331323133313332112323222312   >>