B3311331313231311331322331333132313231323331333131133132313232323231   >>    B331133131323131133132233133313231323132333133313113313231323232323   <<    B3311331313231311331322331333132313231323331333131133132313232323233   >>      B3311331313231311331322331333132313231323331333131133132313232323232   >>