B3311331313231311331322331333132313231333133313311232313231323132322331322311   >>    B331133131323131133132233133313231323133313331331123231323132313232233132231   <<    B3311331313231311331322331333132313231333133313311232313231323132322331322313   >>      B3311331313231311331322331333132313231333133313311232313231323132322331322312   >>