B3311331313231311331322331333132313331323131323223313133313133313111211   >>    B331133131323131133132233133313231333132313132322331313331313331311121   <<    B3311331313231311331322331333132313331323131323223313133313133313111213   >>      B3311331313231311331322331333132313331323131323223313133313133313111212   >>