B3311331313231311331322331333132313331323133211331333133313223122311   >>    B331133131323131133132233133313231333132313321133133313331322312231   <<    B3311331313231311331322331333132313331323133211331333133313223122313   >>      B3311331313231311331322331333132313331323133211331333133313223122312   >>