B3311331313231311331322331333132333133313231332113313331333132313222223311   >>    B331133131323131133132233133313233313331323133211331333133313231322222331   <<    B3311331313231311331322331333132333133313231332113313331333132313222223313   >>      B3311331313231311331322331333132333133313231332113313331333132313222223312   >>