B3311331313231311331322331333131133133313111333133313331322121121211   >>    B331133131323131133132233133313113313331311133313331333132212112121   <<    B3311331313231311331322331333131133133313111333133313331322121121213   >>      B3311331313231311331322331333131133133313111333133313331322121121212   >>