B3311331313231311331322331333132313331322331323133313331331122332322311   >>    B331133131323131133132233133313231333132233132313331333133112233232231   <<    B3311331313231311331322331333132313331322331323133313331331122332322313   >>      B3311331313231311331322331333132313331322331323133313331331122332322312   >>