B3311331313231311331322331333132313231323331333131123313331323221211113321311   >>    B331133131323131133132233133313231323132333133313112331333132322121111332131   <<    B3311331313231311331322331333132313231323331333131123313331323221211113321313   >>      B3311331313231311331322331333132313231323331333131123313331323221211113321312   >>