B3311331313231311331322331333131133133313111333133313231323223311211   >>    B331133131323131133132233133313113313331311133313331323132322331121   <<    B3311331313231311331322331333131133133313111333133313231323223311213   >>      B3311331313231311331322331333131133133313111333133313231323223311212   >>