B3311331313231311331322331333132313331322331323133313231333133311222311   >>    B331133131323131133132233133313231333132233132313331323133313331122231   <<    B3311331313231311331322331333132313331322331323133313231333133311222313   >>      B3311331313231311331322331333132313331322331323133313231333133311222312   >>