B3311331313231311331322331333132313331322331323133313231232322233311   >>    B331133131323131133132233133313231333132233132313331323123232223331   <<    B3311331313231311331322331333132313331322331323133313231232322233313   >>      B3311331313231311331322331333132313331322331323133313231232322233312   >>