B3311331313231311331322331333132313331322331323133313331323131312133311   >>    B331133131323131133132233133313231333132233132313331333132313131213331   <<    B3311331313231311331322331333132313331322331323133313331323131312133313   >>      B3311331313231311331322331333132313331322331323133313331323131312133312   >>